When you and your friend (usually a male) are walking or standing next to each other and a female friend of his (or her's) stops walks towards you and unintentionally puts their breast onto your arm, usually occurring in a horizontal position.
(Guy 1 and 2 are standing next to each other)
Guy 1. So as I was saying is that report due tomorrow?

Guy 2. No she said it was due on Monday.

Girl 1. Hi John! (Walks over to both of them and hugs Guy 1.)

Guy 2. Dude she just gave me boob-arm.

Guy 1. I know.
by HAWT stuff. December 4, 2009
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When generally a woman (sometimes a man) puffs up her/his breasts for pictures, where as the breasts will often become the focal point of the picture.
"Dude, did you see Amandas new profile picture?
Ha, yeah man, that was some pretty serious boob-puff."
by Springenatic October 5, 2010
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An exclamation, pointing out females with amazing cleavage. Especially relevant around Halloween times when more and more cleavage comes out to play
by ttreasurer November 14, 2011
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boobs which are much longer than wide; typically ones that sag or curve up in a noodle or banana shape
i can't tell if that person walking on the sidewalk is a man or woman but it sure has a nice pair of noodle boobs
*points* look at the nooble
by Matt Huff December 10, 2010
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A tactic women use to make men unnecessarily even more aware of their breasts and general hotness, also the outer portion of the boob on the edges of the torso that sticks out beyond the ribs and can be seen from behind.
I was doing the inking for the new "Blood Commando" comic when Betsy leaned over beside me and said, "Nice work." She was normally very distracting, but this time she gave me a little side boob and I nearly jizzed in my pants.

Guy standing beside really hot girl who's been flirting with him all night, to himself: Sweet! The side boob. I'm in.

while watching High Fidelity: Sweet! Katherine Zeta-Jones side boob!
by Johnny Juano March 15, 2010
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when you're really horny and you just want someone to be grabbing your boobs and maybe making out with you
(mostly common for girls but may also occur for males)
shit son i was so boob horny last night but there was no one in sight so i shut off the lights and went to town on my chesticles
by whale princess January 19, 2012
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