Green’s Dictionary of Slang

1. (US black/P.R.) to leave, to walk off; thus as n. the act of leaving, travelling.

1938		Pittsburgh Courier (PA) 23 July 11/1: Pigmeat Markham [...] is in a righteous groove and all set to trilly to Canada.
1942		D. Burley N.Y. Amsterdam Star-News 21 Mar. 16: ‘I’ve been on a heavy cut for a sco’ o’ blo’s and Jackson, the trilly was rough’.
1942		D. Burley N.Y. Amsterdam Star-News 13 June 16: I then laid my trilly to the pad where the Black Venus knocks her nod.
1943		Pittsburgh Courier (PA) 4 Sept. 20/1: Trilly is my play / [...] / Some skin, my fran, and I will go .
1944		D. Burley Orig. Hbk of Harlem Jive 25: I [...] Trillied to the glass-gazer to dig the outside. [Ibid.] 52: When I hear you say, ‘Let’s trilly long down the cruncher!’ I know that you mean ‘let’s take a walk.’ [Ibid.] 78: Trilly-walk — To leave, move on foot, run, flee.
1946		Mezzrow & Wolfe Really the Blues 198: Walking down the street, glimming the cute kittens trillying along.
1959		Murtagh & Harris Who Live In Shadow (1960) 54: For what? For trillying and drinking tea, that’s all.

2. to arrive, to enter.

1979

E. Torres After Hours 22: I trillied on in ’bout three a.m.