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.
To ejaculate into the orifice of a man or woman, then leave your penis in said orifice until the point where you are able to urinate. Y..
1.
A case in which one starts masturbating, but then comes upon the realization that they are way too damn tired to continue masturbating ..