side-boob

When a female has large enough breast that when she has her shirt off and she is viewed directly from behind, you are able to see the sides of her breast.

While looking at the back of a female, her boobs are visible on the side. Thus, side-boobs are present.

by mle_39 December 3, 2007

side-boob

The act of breastfeeding a baby while both mother and baby lie horizontally, facing each other, so that the baby easily falls asleep. A preferred breastfeeding position for night feeds.

After awaking to the sounds of her infant screaming lying next to her, the mother turned around and gave him side-boob and he quickly went back to sleep.

by Toni Areola April 21, 2011

Alien side boob

A scene or image that contains the slightest amount of implicit risque content. This will in turn cause outrage from ignorant parents, right-wing nutjobs, and experts in unrelated fields.

Did you beat mass effect 2?

Yeah but they took out the alien side boob.

by jack5 April 25, 2011

Inner side boob

The inner, upper part of a womans breasts. Cleavage

Dude 1: "Dude. I just saw some sweet inner side boob!"
Dude 2: "You mean cleavage?"
Dude 1: "whatever."

by Random Cartok February 2, 2010

slam piece of side boob

A side hoe or slam piece, typically having nice breasts.

Yo jack who’s that girl you were with again last night are y’all dating?
Jack: Naw, that’s just my slam piece of side boob.

by The Rickest Rick August 25, 2019

sideboob

A view of the female breast seen from a side; generally under loosely-fitting clothes. Very titillating (pun intended) and sexual without showing any overt nudity.

There is so much sideboob at Los Angeles awards shows!

My brother's g/f's sideboob totally distracted me from my own g/f.

by Nutty J September 17, 2005

tasteful sideboob

The breast on the side in public that makes you become erect in seconds

John: Steve's gf has some tasteful sideboob
John's gf: WHAT?!

by Bigger_Than_Colin_69 February 13, 2014