cumrack 

The thing (often a sock) a masturbating man uses to unload himself into in order to avoid any inconveniences caused by traces of cum

Last night's porn was so awesome I totally filled up my cumrack

cumrack by Erectoman March 26, 2011

Cumrucking 

where after giving head (and swallowing) you burp and some cum comes up in the back of your throat.

Dude, my boyfriend totally came too much so when I burped, it was actually me cumrucking.

Cumrucking by Macjammin March 31, 2010

cumjack 

When a girl jacks someone off, then uses their cum as lubricant to jack YOU off.

Me: After Bob cums, please cumjack me!
Girl: OK!
Bob: *cums*
Girl: *scoops up cum, jacks me off*

cumjack by Assistant Trailer Park Supervisor March 10, 2008

cumcrack 

one's mouth.
the human orifice capable of verbiage
usually meant in a derogatory way.
piehole
cakehole

"shut your cumcrack!!"

cumcrack by radia January 6, 2009

cumback 

After a woman gives a man oral, she doesn't spit or swallow-- she proceeds to kiss the man and give him his cum back.

"Dude after Stacy blew me, she gave me a cumback-- I didn't know it was that salty!"

cumback by JuJuLaylayRiRi April 2, 2009

cumsack 

is when a woman is so slutty she is like a human condom

Where's the cumsack at

cumsack by metalmite October 25, 2007

The cumback 

When a guy blows a load in his partners mouth and after it's done, the partner comes up to kiss him, and the partner spits the load back into the unsuspecting guys mouth.

Aj: "God damn, Morgan gave me the cumback last night!"
Rome: "I bet you liked that mouthful of baby gravy faggot!"

The cumback by Shaniqua jones ;) August 24, 2011