slamming on the brakes; braking suddenly
Wasei-eigo from English 'full brake'; used for a sudden, hard application of brakes, often in driving contexts.
wasei-eigo (Japanese-coined English), from full brake
The car in front stopped suddenly, so I slammed on the brakes.
Variant with interpunct; less common but still seen.
Wasei-eigo from English 'full' + 'brake'. Not used in English with this exact meaning.