Green’s Dictionary of Slang

to open a lock by means of a strip of celluloid.

1997		E. Little Another Day in Paradise 51: Schlage dead bolt, made out of case-hardened steel. Can’t loid it.
2000		J.J. Connolly Layer Cake 162: It’s some geezer loidin the front door.
2001		(con. 1975–6) E. Little Steel Toes 63: Red’s done loiding the lock with such speed, skill, and finesse that I’m caught by surprise.