nod off
phrasal verbPart ofnod
nod off — phrasal verb
1. to gradually fall asleep, especially when you are sitting somewhere and do not i
1.phrasal verb
Definition
to gradually fall asleep, especially when you are sitting somewhere and do not intend to sleep.
Example
Christopher nodded off during the movie because he had not slept well the night before.
The warm classroom made several students nod off during the maths test.