nod off

US /nɑːd ɑːf/
UK /nɑːd ɑːf/
"nod off" picture
1.

in slaap vallen, dommelen

to fall asleep, especially unintentionally

:
He kept nodding off during the boring lecture.
Hij bleef in slaap vallen tijdens de saaie lezing.
I was so tired, I almost nodded off at my desk.
Ik was zo moe, ik viel bijna in slaap achter mijn bureau.