JTR

Abbreviation of 'Jack the Ripper'. Used to describe someone who is deemed to be psychotic and/or murderous.
Guy 1: You seen that guy down the park who carries a knife with him?
Guy 2: Yeh, he threatened to kill me because I accidently kicked a football at him. He's a real JTR...
by Joey Moto February 05, 2009
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JTR

John the Rapist

- a local Rochester myth that spreads in the colleges in the area, about a rapist who goes party to party lurking in the shadows, taking advantage of young women. No one knows his true identity or if he is real at all. But he instills fear in all party goers, never knowing when he is going to strike again.
Yo Jared "I heard JTR was at that soccer party last week"
" no way bro, he must've been in the shadows"
by mdaddy47 April 01, 2025
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