look up any word, like dirty sanchez:
 
1.
When a woman prevents a man from getting some action with her even though she acts like she wants some.
Guy 1: Remember Jessica? Last night she pulled a cockstop on me.
Guy 2: I hate when girls lead you on like that.
by MynoduespseudonyM January 21, 2009
 
2.
The time in which a girl/woman consciously doesn't have sexual intercourse with a boy/man.
Sarah was so heartbroken after her boyfriend boke up with her that she had a cockstop for 8 months.

Frank: Hey Susan...
Susan: Piss off Frank, I'm on a cockstop.
by Nightbreed666 April 30, 2009
 
3.
1.) When your about to fuck your girlfriend and her best friend fuckin calls her and tells her she broke up with her boyfriend
2.) The part of a chemistry burette used in titration experements that keeps the acid or base flow restricted...
1.) Hell yea baby, lets do it --- not now... carol called and shes having a hard time getting over her ex
2.) make sure the cockstop is turned all the way off so the liquid doesnt escape the burette
by M-Dawggie May 01, 2008
 
4.
When another man stops another from having relations with a female.
Man 1 : Get out, I'm trying to poon this chick!

Man 2 : No I don't have to get out of here because you want me to.
by Falkinor May 01, 2005