four-on-the-floor

Short definition from Wiktionary

Noun

1. 1
   A four-speed manual transmission whose gearshift lever is mounted beside the driver on the floor of the vehicle; (metonymic) a vehicle with such a transmission.
2. 2
   A steady, uniformly accented beat with a 4/4 time signature in which the bass drum is hit on every beat.
3. 3
   Alternative spelling of four-on-the-floor.