zonk out

Thesaurus

Verb	1.	zonk out - lose consciousness due to a sudden trauma, for example pass out, black out faint, pass out, swoon, conk - pass out from weakness, physical or emotional distress due to a loss of blood supply to the brain change state, turn - undergo a transformation or a change of position or action; "We turned from Socialism to Capitalism"; "The people turned against the President when he stole the election"
	2.	zonk out - fall asleep fast, as when one is extremely tired; "after the long drive, we zonked out and slept for 10 hours" dope off, doze off, drift off, drowse off, fall asleep, flake out, nod off, drop off - change from a waking to a sleeping state; "he always falls asleep during lectures"