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An initialism of "I seriously hope you guys don't do this," used in online communications to mock, belittle, or castigate certain behavior. Often used as a hashtag or in the format "current year > undesirable behavior > ISHYGDDT." Look, voicing criticism is fine, but harassing an artist just because you don't like something they made is all sorts of messed up. #ISHYGDDT >2020 >not washing your hands regularly ISHYGDDT
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.