ずっこけるto fall down (e.g. off a chair), to slip down (e.g. one's eyeglasses), to slide down

る-verb, Intransitive verb

1. 1.

   to fall down (e.g. off a chair), to slip down (e.g. one's eyeglasses), to slide down

2. 2.

   to make a fool of oneself

3. 3.

   to whoop it up, to be on the spree, to cut loose, to mess around