drop out phrasal verb ( see also ↑ drop )
1 . to no longer do an activity or belong to a group:
The group gets smaller as members move away or drop out.
2 . to leave a school or university before your course has finished ⇨ dropout
drop out of
Bill dropped out of college after his first year.
3 . to refuse to take part in ordinary society because you do not agree with its principles ⇨ dropout :
In the 60s, Leary urged kids to ‘Turn on, tune in and drop out.’