Squirting Cucumber
It's a cock, one that squirts a particulately large amount of semen as soon as it is ready to, burst much like the squirting cucumber of europe that when the seeds are ready to germinate the squirt a white mucous-like substance, thusly you have learned something true and a new slang word
You: Yo, mike you see that chick last night?
Mike: Yeah she totally wanted some of this squirting cucumber all over her face
Mike: Yeah she totally wanted some of this squirting cucumber all over her face