Synonyms of zonk out

Verb

1. zonk out, pass out, black out, change state, turn

usage: lose consciousness due to a sudden trauma, for example

2. zonk out, fall asleep, dope off, flake out, drift off, nod off, drop off, doze off, drowse off

usage: fall asleep fast, as when one is extremely tired; "after the long drive, we zonked out and slept for 10 hours"