A party to celebrate moving into a new flat (apartment).

plural of flat-warming

(rail transport) A flat spot on a railway wheel caused when a wheel, or both wheels on the same axle, in a moving train stop rotating.

plural of wheel flat

Having a (generally) level upper surface.

Of or relating to the theory that planet Earth is flat.

plural of flat dog

The belief in, or advocacy for, the theory that the planet Earth is flat.

A small patch of a vehicle tyre that has been flattened by abrasion with the road surface, so that the tyre is no longer smoothly circular at that point; usually caused by the wheel locking under heavy braking.

To cause a flat spot on (a vehicle tyre), usually by locking the wheels under heaving braking.