sign up

Phrasal verb66/258

to sign a form or contract which says that you agree to do a job or become a soldier; to persuade sb to sign a form or contract like this

Heard in 31 movies · Avengers: Age of Ultron
DR. LIST: It's what they signed up for.
Phrasal verbs · 66 of 258
    sign up meaning & examples · 31 movie clips · from Avengers: Age of Ultron (2015)