by Biggie Wilson June 9, 2005
 Get the cock upmug.
Get the cock upmug. To make a complete mess of things. Derived from the traditional archery usage where, if the 'cock' feather was uppermost, the arrow would not fly straight.
by Tawera March 29, 2008
 Get the cock upmug.
Get the cock upmug. by Kono January 23, 2004
 Get the cock upmug.
Get the cock 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. 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 Mark December 21, 2004
 Get the cock upmug.
Get the cock upmug. Does anyone know what it means?
by William Shakespeare December 12, 2003
 Get the cock upmug.
Get the cock upmug.