What is Monostain?
1.
A event during sexual intercourse that a man ejaculates after only one pelvic thrust
hence the name
mono: one
stain: ejaculation
dude: was I any good
duedet: no, that was a complete monostain
See
Random Words:
1.
When, while not looking, you walk into a lamppost.
*Dave walks into a lamppost*
Mike: Har har, you got lampposted!
See lamp, post, la..