Verb (used without object) : flags billowing in the breeze.    From Dictionary.com. 

Verb (used with object) : A sudden wind billowed the tent alarmingly.    From Dictionary.com. 

Soon the sky was filled with the gray soot billowing from the stack of a coal burning locomotive.    From Wordnik.com.  [Above the Clouds at Thirty Below] Reference

The ash cloud billowing from the Icelandic volcano continues to cause widespread disruption to flights.    From Wordnik.com.  [Telegraph.co.uk: news, business, sport, the Daily Telegraph newspaper, Sunday Telegraph] Reference

Fire is billowing from the Windsor House apartments on Rhode Island Avenue NW, Capital Business reporter Jonathan O'Connell tells us.    From Wordnik.com.  [Fire at D.C. apartment displaces 21] Reference

It looks like it's just kind of billowing very lightly, moving overtly rather than horizontally.    From Wordnik.com.  [CNN Transcript Oct 24, 2007] Reference

The fog moved as she moved, "billowing" forth if she advanced and back when she stopped or retreated.    From Wordnik.com.  [Incubus]

"billowing" from the building, near the Bank of England in Threadneedle Street.    From Wordnik.com.  [The Guardian World News] Reference

Or worse yet, steam billowing from under the hood.    From Wordnik.com.  [What to do if your car overheats] Reference

The dresses have billowing sleeves and long, ruffled trains.    From Wordnik.com.  [Celia Cruz: Her Life and Music] Reference

It's coming billowing up over the ridge of the hill in big drafts.    From Wordnik.com.  [Hard To Know You Can't Go Back] Reference

As he walks towards us, he casually smoothes down his billowing coat.    From Wordnik.com.  ['Fateless,' Faithful to the Kertesz Novel] Reference

The window was open and her long sheer curtains were billowing inward.    From Wordnik.com.  [One Thousand Incarnations and One Thousand Deaths - Part I] Reference

It's the little jacket that they have, very short with billowing leaves.    From Wordnik.com.  [Korean War Vets Return To The Scene Of Battle] Reference

Some spectators will remember running under Grandma's billowing clothesline.    From Wordnik.com.  [MANHATTAN PROJECT] Reference

As he approached the door, one of his long, billowing sleeves touched a candle.    From Wordnik.com.  [Scare Tactics] Reference

The two bikes wheel into a melon patch, trailed by a billowing cloud of red dust.    From Wordnik.com.  [Unholy Allies] Reference

He parted the billowing curtains and let himself into the courtesan's bedchamber.    From Wordnik.com.  [THE PREVIOUS ADVENTURES OF POPEYE THE SAILOR] Reference

Other fire hazards include big, baggy sleeves, trailing cloaks and billowing skirts.    From Wordnik.com.  [Halloween costume tips: Keep them scary -- and safe] Reference

I wear billowing white dresses and a wide-brimmed straw hat that throws my face into shadow.    From Wordnik.com.  [Skyscrapers] Reference

GAIL DEVERS PHOTOGRAPHERS LOVE her billowing hair, her pumped muscles and her remarkable nails.    From Wordnik.com.  [Good As Gold] Reference

"One might get the sense it's a billowing epidemic, when in fact the opposite is true," he says.    From Wordnik.com.  [Lead And Your Kids] Reference

To my younger self, the littered beaches resembled billowing garbage monsters with cans for eyes.    From Wordnik.com.  [Caroline Hagood: Making Trash Sculptures in Hurricane Season] Reference

How is it, then, that this year's must-have accessory is a smog-billowing cheroot the size of a baby's arm?.    From Wordnik.com.  [Blowing Smoke] Reference

Kids love them, but these giant billowing figures require a constant stream of electric-fan power to remain upright.    From Wordnik.com.  [Decorating Sense] Reference

Cut to a masked sanitation worker tossing the glop-covered corpses of birds, seals and otters into a billowing bonfire.    From Wordnik.com.  [Anatomy Of A Catastrophe] Reference