simple past tense and past participle of tuck up

A mistake or fail.

simple past tense and past participle of look up to

present participle of look up to

simple past tense and past participle of clock up

present participle of buffer up

Third-person singular simple present indicative form of buffer up

simple past tense and past participle of buffer up

(rail transport, transitive) To move (a rail vehicle) so that its buffers are touching the buffers of another rail vehicle.

Third-person singular simple present indicative form of book up