Yitbos (sometimes YITBOS):

a. a word used by members of the Delta Sigma Phi fraternity as a general salutation. Its actual meaning is kept under tight wraps by the fraternity, and a favorite hazing ritual of initiation is to have pledges come up with definitions/acronyms for it.

b. something men of a certain upbringing and moral fortitude say to one another in order to make themselves feel important
"dude, i totally tagged six or eight hot chicks last night at that wedding! i think one of them might have been the bride..."
yitbos,
DrinkrDude97
by white angus beef March 21, 2007
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a farewell expression used by the ladies of Theta Phi Alpha. Can be used as a farewell in person or in letters.
It's meaning is kept close to heart.
Can't wait to see you at initiation tonight!
yitbos,
your sister
by TPA2007 March 25, 2011
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