no-boob hug
A type of hug in which a female distances herself to the extent that her boobs have no physical contact with her male counterpart. The no-boob hug is often employed to minimize touching and to signal disinterest in the initiator or recipient of the hug.
Dude, my ex-girlfriend just totally dissed me with a no-boob hug.
Boob Hug
When a guy is sitting down and a girl comes up behind him and rubs her breasts in his face along with a hug.
Chad was caught up in paperwork in his office when Kiersten came in and gave him a Boob Hug that made his boner grow!
Boob hug
A hug during which one or both or all (if 3-way or more) of the people involved enjoy feeling the other person's breast(s).
"I wonder if she knows I'm her friend mostly because of her boob hugs..."
maximum-boobs hug
What you attain by slipping yer arms underneath a chesty chick's armpits and then drawing her ample upper-body pillowz snugly up against yer own chest; this gives you total and completely-unrestricted access to said delightful warm plump pliable mammaries, and so you can really snuggle up to said bountiful treasures and super-savor her softness and her soothing heartbeat.
Giving a maximum-boobs hug to a cute sweet-faced chick who's "well-endowed upstairs" is indeed one of a nice guy's favorite and most pleasurable activities; just remember to be extra gentle and careful wif her oversize baby-feeders when canoodling wif her in this "totally submissive and vulnerable" way, since she will no longer have her own arms positioned in front of her to protectively nudge you backwards if you started accidentally pinching or squishing her tender delicate buxomness wif yer own chest or arms.