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:
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During anal sex, you pull out your cock, have the chick take a shit in your hands, rub it all over your dick and then put it in her pus..
1.
when your scrotum hugs your upper inner thigh due to sweat from the heat...as a koala bear to a tree
OH BOY!!!! I have some mean koala ..