An artificial vagina surgically implanted into the perineum of a man. Derived from an online chat room where banterled to the discovery of a new sexual organ.
"She's got a tight topanga."
"I might get a topanga operation with the extra money from my taxes."
1] A place where there are no police and you get get away with just about anything.
2] a place where the majority of the people smoke weed or grow weed.
3]a place where hippes live
fred: ey dawg you wanna go to topanga and light up.
Jeff: hell yeah man. while were there you want to grow a few plats for the futer.
fred: hell fucking yeah you got the rite idea