(verb-past tense)To have messed up, had an accident, or created an otherwise unwanted incident causing problems for other people.
(in left4dead)
Louise: WHY DID YOU MOLOTOV ME WHEN WE COULD HAVE MELEE'ED THEM ALL AWAY!? FRANCIS YOU COCKED UP THE PLAN AGAIN!!
Louise: WHY DID YOU MOLOTOV ME WHEN WE COULD HAVE MELEE'ED THEM ALL AWAY!? FRANCIS YOU COCKED UP THE PLAN AGAIN!!
by Bill the veteran December 18, 2008
 Get the Cocked upmug.
Get the Cocked upmug. 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
"oh decent cock up"
or
"fuck i cocked that right up" etc
by wattsy.08 May 9, 2008
 Get the cock upmug.
Get the cock upmug. by Toxic Rage November 19, 2004
 Get the Cock-Upmug.
Get the Cock-Upmug. by TacoBenda November 6, 2014
 Get the Cocked upmug.
Get the Cocked upmug. 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.
by buttholebabbbyyyyyyy February 18, 2015
 Get the cock upmug.
Get the cock upmug. by cypherx April 8, 2011
 Get the Cocked upmug.
Get the Cocked upmug. (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.
by Dieselboi February 3, 2010
 Get the Cock Upmug.
Get the Cock Upmug.