To abandon someone without warning.
To miss school, play truant, play hooky.
To crash or glitch.
To leave (a place) hastily.
To freak out, to go crazy, e.g. from worry.
To cause to bulge.
A rapid retreat, a rout.
To leave a place, a meeting, etc., without being noticed; to slip away, slip off.
Used other than figuratively or idiomatically: see slide, off.