What is Spunk Brother / Sister?
1.
A half sibling via your father
ie from his 'spunk donation'
usually applying to promiscuous men with more than one family.
I didn't know you had a brother/sister - Oh he's my "Spunk Brother / Sister"
Underlining the fact that the relationship is not a close one.
Random Words:
1.
When a girl sucks your dick.
During the movie, Sylvia started to "numb the bud".
See suck dick, cock, penisitis, fellatio..