An exercise for the penis, very similar to curl ups for the abs
Damn! Billy just did 35 cock ups in a row, he's in great shape down there!
by IZ93 April 13, 2010
An exercise conducted in the way of a normal pushup, but utilizing only the penis instead of both arms.
I have a very large penis... it is because of all the cockups I do.

I'd like to do cockups on that girl. Damnnn.

As a 60 year old man, the doctor suggested I use Viagra. Being a naturalist, I chose to do cockups instead.
by Nave Nedrob March 08, 2009
is when your working on sumthing and you fuck it up
your working on a peice of work nd you fuck it up good,

"oh decent cock up"
or
"fuck i cocked that right up" etc
by wattsy.08 May 09, 2008
When you're getting a slight boner in public, and you go into the bathroom and flip it north so it is held up by your pants. Usually is held up by tightening your belt.
"Dude, I had the worst cock up today".
by buttholebabbbyyyyyyy February 18, 2015
A complete push up except without using one's hands, and instead using one's cock.
That fools doing cock-ups, is that even possible?
by Toxic Rage November 19, 2004
When someone is giving oral sex to a male, and tries to deepthroat it, but almost pukes
"Ima make you cockup ho"
by WUT U SAI October 15, 2008
(1) (Noun) The act of not fully inserting one's penis in an other's vagina or anus until about to cum and then just before one is going to cum, the full erection is thrust into the vagina or anus. (2) (Verb) To not fully insert one's penis in an other's vagina or anus until about to cum and then just before going to cum, the full erection is thrust into the vagina or anus.
The girl thought he was fully inside her while having sex until he gave her a cock up.
by Dieselboi February 02, 2010
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