The quality of having or being billowy, cloud-like, fluffy, or otherwise over-flowing. Often used to refer to ladies with big, squishy natural breasts that you wanna sink your face into
Im always on the search for billows that way i can rest my head without bringing around a bunch of pillows
מאת trixxy b damned 10 בנובמבר, 2006
Play on the words "butt" and "pillow".
"Aw man this seat is uncomfortable. Can i have a billow?
מאת ILikePieSalad 21 בספטמבר, 2013
When a woman farts whilst having anal sex.
Oh shit, bitch! Did you just billow? Now my one eyed viper's got pink eye.
מאת Matt McDouche 17 בדצמבר, 2008