This is a matter of respect to show the "jefe" that he is still jefe.    From Wordnik.com.  [Use of familiar vs formal] Reference

However, many bank tellers are not used to them and many times they have to ask their "jefe" (boss) for help.    From Wordnik.com.  [No time to get ATM so should I bother with travelers checks?] Reference

"We can have that inscribed on your tombstone, jefe.".    From Wordnik.com.  [Tek Money]

El jefe, Rick Sanchez, is up next with the 3: 00 hour.    From Wordnik.com.  [CNN Transcript Oct 15, 2008] Reference

El jefe pried one loose and rattled it around in his hand.    From Wordnik.com.  [Clear and Present Danger]

They call this guy the "jefe of jefes," "the boss of bosses.".    From Wordnik.com.  [CNN Transcript Dec 17, 2009] Reference

"I'm in need, jefe, of a safe place to hide a friend of mine.".    From Wordnik.com.  [Tek Kill]

Our new jefe and his crew were out of work and hungry for more.    From Wordnik.com.  [Time urgency and cultural differences] Reference

"You weren't expecting the jefe to put you in charge, were you?".    From Wordnik.com.  [Tek Kill]

"Perhaps that would be a serious mistake, jefe." he said quietly.    From Wordnik.com.  [Clear and Present Danger]

Then, as soon as I handed it to him, his boss (jefe) drove up.    From Wordnik.com.  [Watch out for speed trap in Monclova] Reference

The door opened, and there was el jefe, his visage placid and happy.    From Wordnik.com.  [Clear and Present Danger]

The chunk could be jefe then if it wanted to, but it didn't have to.    From Wordnik.com.  [Exodus From The Long Sun]

Bueno fuera írselo repitiendo al jefe para que abrevie, si puede ser.    From Wordnik.com.  [Pitman's Commercial Spanish Grammar (2nd ed.)] Reference

He conducted his late employer's (jefe) business quite satisfactorily.    From Wordnik.com.  [Pitman's Commercial Spanish Grammar (2nd ed.)] Reference

Ambushes like this one-no, jefe, once they fail, they fail completely.    From Wordnik.com.  [Clear and Present Danger]

Yes, jefe, there were ten of them as I suspected, and we got them all.    From Wordnik.com.  [Clear and Present Danger]

Finally the jefe invited us to be the first vehicle to cross the bridge.    From Wordnik.com.  [Page 2] Reference

"Bascom, our beloved jefe, wants to see us both muy pronto," he explained.    From Wordnik.com.  [Tek Money]

He became nervous about "el jefe" coming by in the morning and firing him.    From Wordnik.com.  [Pet-Friendly Mexico Lodgings, dogs and cats] Reference

The local river jefe only turns on the river during the irrigation season.    From Wordnik.com.  [Fish Ponds] Reference

"The ambush was very clever, jefe, but I saw through your ploy," Cortez said.    From Wordnik.com.  [Clear and Present Danger]

The jefe unscrolled part of the catalogue, darting to and fro among its items.    From Wordnik.com.  [The Stars Are Also Fire]

I asked the jefe at Migracion here in Oaxaca, and he rolled his eyes, "Quien sabe?".    From Wordnik.com.  [# of Americans and canucks in Mexico] Reference

"Are we, jefe, going to be working for one of your sneaky government agency chums again?".    From Wordnik.com.  [Tek Money]

I blame it on a bad attitude by the (architect selected) jefe albanil - a crusty old guy.    From Wordnik.com.  [House Progress] Reference

"Your ideas of handsome, jefe, have often matched my notions of downright ugly in the past.".    From Wordnik.com.  [Kahen no Ame] Reference

First of all, our jefe politico, or mayor, would have been taken out and shot against a wall.    From Wordnik.com.  [Mexico's Army and Ours] Reference

Well, it could have been because Fidel Castro stepped down from power and we make room for el jefe news.    From Wordnik.com.  [Raveonettes Bring the '60s Back] Reference

Á mi no me cuente para nada (do not take me into account), valdríale mejor verse con (see) el jefe del despacho.    From Wordnik.com.  [Pitman's Commercial Spanish Grammar (2nd ed.)] Reference

"Boys," said Mr. Black the following morning as they were preparing to pay a visit to the jefe politico, "I want you to do me a favor.".    From Wordnik.com.  [The Broncho Rider Boys with Funston at Vera Cruz Or, Upholding the Honor of the Stars and Stripes] Reference

Somebody needs to inform her that she is not currently "el jefe" -- the candidates are members of a party and do not determine the rules.    From Wordnik.com.  [Hillary: Pledged Delegates Can Switch Candidates] Reference