[tingle] See: [SPINE-TINGLING].

[tinker's damn] See: [NOT WORTH A TINKER'S DAMN].

[tip] See: [AT THE TIP OF ONE'S TONGUE], [FROM TIP TO […]

[tip off] {v.}, {informal} To tell something not generally known; tell […]

[tip the balance] See: [TIP THE SCALES] (2).

[tip the scales] {v. phr.}, {informal} 1. To weigh. * /Martin […]

[tire out] See: [WEAR OUT] (2).

[tired] See: [DEAD TIRED], [SICK AND TIRED].

[tit for tat] {n. phr.} Equal treatment in return; a fair […]

[TK] Team kill (or killing, killer, depending on context)