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.
Person #2: Wow, that's pretty effed up. He has some serious problems.
by itskaylinbitch January 16, 2011
Get the dunkster mug.by bob langston October 9, 2006
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