tired, weak, exhausted
He felt weak.
Also mach jetzt bloß nicht schlapp, Mann.
So don't give up now, man.
— Reservoir Dogs - Wilde Hunde (1992)
Man sollte nicht warten, sonst macht der Rechner schlapp.
You shouldn't wait, or else the computer will give out.
— Taxi (1998)
Hey, mach mir jetzt bloß nicht schlapp!
Hey, don't you dare make me feel faint now!
— Porco Rosso (1992)