미끄러지다

1. slip; skid
To slip over to one side or fall on a slippery surface.

2. cruise; glide
For a car, train, ship, etc., to move forward unhindered along a road, track or waterway.

3. be stripped of
(slang) To be stripped of a position that one holds.

4. fail
(slang) To not be among those selected or chosen, or fail an exam.