aufsitzen

get on, mount up, stay up late

verb Rare #46,575

get on, mount up Often used as a command to get onto a horse or vehicle.

GE: Wir müssen schnell aufsitzen.

EN: We have to get on quickly.

stay up late Usually used with a time expression, as in „bis spät in die Nacht“ (until late at night).

GE: Ich muss heute lange aufsitzen.

EN: I have to stay up late today.

Everyone else, get on.

— Manitou's Shoe (2001)

Come on, mount up!

— The Bridge (1959)

You shouldn't stay up until late at night!

Mount up!

— Der Untergang (2004)