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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a group of awesome teenagers who are all best friends,in california.who are the douche bags of the valley.jersey shore inspiration..FIST PUMP!
cali shore douche bags
man,did you see the csdbs? they fist pumped all night long
by mermaid bunny February 6, 2010
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