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8.
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
 
9.
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
 
10.
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
 
11.
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
 
12.
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
 
13.
cockup means that the penis is in the correct position
in the vagina when a couple are having sexual intercourse
I was in bed with the sexspecialist and I had my cockup
by Stias December 08, 2005
 
14.
(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