Green’s Dictionary of Slang

triple adj.

SE in slang uses

In compounds

triple-clutcher (n.)

a euph. for motherfucker n.

[US]H. Rawson Dict. of Invective (1991) 258: Such variations on the unstated theme as M.F., Marshall Field, and Mister Franklin, the slurred mo’-fo’ and muh-fuh, the rococo triple-clutcher, popularized by black truck drivers in army construction battalions; and the clipped momma, mother, and muther.
triple-hip (n.) [the individual has two sexualities + one drug use]

(US black) a bisexual who uses drugs .

[US]B. Rodgers Queens’ Vernacular 200: triple hip drug-using bisexual.
triple-hip (adj.) [SE triple + hip adj. (1)]

(US black) extremely smart, very wise.

D. Lee ‘But He Was Cool, or: he even stopped for green lights’ [poem] in Groundwork: Sel. Poems of Haki R. Madhubuti Don L. Lee (1966–1996 ) 🌐 super-cool / ultrablack / a tan/purple / had a beautiful shade. / he had a double-natural / that wd put the sisters to shame. / & his beads were imported sea shells / (from some blk/country i never heard of) / he was triple-hip.
triple master blaster (n.) [SE triple + master blaster under master n.]

(drugs) a situation in which one smokes crack cocaine while simultaneously being fellated and sodomized.

[US]T. Williams Crackhouse 152: triple master blaster oral and anal sex performed by two people on a third man or woman while he or she smokes crack-cocaine or freebase.
triple nine (v.) [the UK emergency phone number: 999]

to call the police.

[UK]N. Barlay Crumple Zone 190: A lo’a times, if you do it righ’, dey don’t even triple nine.
triple tree (n.)

see separate entry.

In phrases

hip on the triple-clock (adj.)

(US black) ultra-sophisticated.

D. Burley N.Y. Amsterdam Star-News 13 Mar. 13: You’re supposed to be hip on the triple-click but you [...] suffering from the shorts on the backcap.