1 definition by cumgirl69

Top Definition
a group of best friends who are seniors in highschool and who are very cocky. these guys are usually fun and kind hearted but come off as douchebags at first.

CSDB=COCKY SENIOR DOUCHEBAGS.
girl #1: look at those guys! they're soooo dreamy!
girl #2: too bad they're CSDB.
by cumgirl69 November 27, 2010

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