A ganker takes someone their bank, gold, money or something.
The ganker took his wallet and laptop, then maxed out all his credit cards.
by SmurfDaddy January 24, 2004
Person who upon friending you on a social website then goes through your entire list of friend's to add as many of them as possible.
I added Lori Paul on Facebook and she immediately added every single person my list she could, she's quite the ganker.
by Rancor January 27, 2015