"Bro did you see octavia today?"
"Brutha she has the IQ of a watermelon"
(Implying she is retarded)
A person that is named (finn/finnigan/flinn/finlay) that would finger a girl on the spot. No matter were they are.
"I was with finn last night"
"Oo what happened"
"He gave me the best flinngering at the park"