trips up

Verb

trip up (third-person singular simple present trips up, present participle tripping up, simple past and past participle tripped up)

1. (intransitive) To commit an error, make a mistake.
2. (transitive) To cause (someone) to commit an error, trick into a mistake.
3. (intransitive) To fall or stumble.
4. (transitive) To cause (someone) to fall or stumble.