What do you call this: #

#horriblethread
#postlessplease
#nopicsofwifenocare
#PIIHB

depends on the context.

Typically the pound sign. But if I'm talking to an idiot I may just say hashtag to save a few seconds of explaining.

quote:

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Pound or hash tag?

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Number

Tic TAC toe board

quote:

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Sharp

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Actually I think that, but not call it that because I realize it rarely has to do with music

lb

lb

pound

Pound.