Definitions by itskaylinbitch

dunkster 

The act of giving someone a swirly while having sex with them. This is done doggy style over a toilet.

Person #1: Did you hear that Alex guy gave some chick a dunkster?
Person #2: Wow, that's pretty effed up. He has some serious problems.

dunkster by itskaylinbitch January 16, 2011