Tumbar (en. Knock down)
/tumˈbar/
Slang Meanings
To lie down on the beach
I am going to lie down on the beach to sunbathe.
Voy a tumbarme en la playa a tomar el sol.
To fail the grade
The teacher failed several students on the exam for cheating.
El profesor tumbó la nota del examen a varios estudiantes por hacer trampa.