This is an internet abbreviation for 'Where the fuck'.

WhTF is part of the leetspeak language. The extra 'h' helps readers to distinguish it from WTF

Similar word(s): WTF
-EXAMPLE-

WhTF is Pantheon Horus?

WhTF did all my bullets go?
by [Pantheon]Lono July 11, 2008
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What?? Huh?! The friiiig?? Usually an incredulous response to fake ginger friend.
by Ma'andle October 10, 2018
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