One who donates their semen/sperm for the good of others.
Jim: Hey man, it sucks that you're sterile and shit.
Kenneth: Yo dawg, is aight, we's gonna find us a sementhropist!
© 1999-2015 Urban Dictionary ®
Free Daily Email
Type your email address below to get our free Urban Word of the Day every morning!
Emails are sent from email@example.com. We'll never spam you.