1.
If you ~, you deliberately do not go to bed, especially because you are expecting someone to return home late at night.
I hope he doesn’t expect you to ~ for him...
Don’t ~.
= stay up
PHRASAL VERB: V P for n, V P
2.
If you ask someone to ~, you are asking them to go more slowly or to stop and wait for you. (AM INFORMAL)
I was running down the hill shouting, ‘Michael, Michael, man, ~’.
= wait
PHRASAL VERB: usu imper, V P