jam on (something)

Translations
резко нажать на (что-то)
He had to jam on the brakes to avoid the collision.
Ему пришлось резко нажать на тормоза, чтобы избежать столкновения.
Definitions
To improvise, play, or experiment freely with something, often in a musical or creative context; can also mean to work collaboratively and spontaneously on an idea or project.
Words
jam

verb
импровизировать
on

preposition
над
something

pronoun
что-либо