Top Definition
The act of Ejaculation performed so the expelled seman lands on a stone.
"EER this rock is slimey someone must have Mcdermincated on it"

" Dude pass me that rock i need to Mcdermicate, i love Mcdermication "
by James Chadwick July 10, 2008
5 Words related to Mcdermication

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.