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IHTN is a short term for someone who has to nut, meaning "I Have To Nut." Sometimes also replaced by IHTC meaning "I Have To Cum" or IHTE meaning "I Have To Ejaculate."
Sally: Hey John, can you come over and play Roblox?

John: Not now Sally, IHTN.
by A fucking simp November 14, 2020
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May 12 Word of the Day
When someone goes to the gym and spends 90% of the time on their phones scrolling through social media
Looks like its thumb day again for Jimmy with his usual routing... 3 sets of 5 snapchat selfies and 10 sets of scrolling through facebook until exhaustion
by Gary br April 02, 2017
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