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1.
Anal sex. Used by prostitutes as a code word in Greece. (Actual definition is a sesame ring sold by street vendors as a snack.)
That hooker not only gives the best bbbj's but she does koulouri as well.
by trizzout July 16, 2008
 
2.
Is slang in Greek for the male penis.
Come on John, lets go to the bar and find some women to dip our koulouria in tonight :)

Ella John, im headed to Ann's house to dip my koulouri .

dick penis shlong wet dip
by B K Broiler January 19, 2014