1. The tagalog phrase 'Liit Titi Boy' shortened, meaning 'Little Penis Boy'
2. A shortened version of saying to someone that they have a little weiner.
3. Used when enraged at random people. Especially at work.
Boss: "Hey, did you finish the paperwork, Kris?"
Kris: "Uhh, no. I didn't."
Boss: "LTB!"
Kris. *Cries*
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