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.
A Combination Of Necrophilia and Beastiality.
Snapping a chickens neck, sucking out the blood and puss then spitting it out on your dic..