when you build up momentum to tell someone something and then forget what that something is
"hey so i wanted to say something"
"yeah sure go for it!"
"....i forgot"
"god, another katy moment?"
by pigoinklord December 26, 2018
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When a heterosexual girl kisses another girl just to try it or is too drunk to realize they are kissing another girl.
Girl 1#- Did you hear about Suzie's Katy Perry Moment at the club last night?
Girl #2- What are you talking about? Isnt she with Dean?

Girl #1- Having a Katy Perry moment means she was too drunk to know she was kissing another girl,or maybe she just wanted to try it.
by chanteleylace January 12, 2015
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