A fall, especially end over end.

A disorderly heap.

(informal) An act of sexual intercourse.

(intransitive) To fall end over end; to roll over and over.

(intransitive) To perform gymnastics such as somersaults, rolls, and handsprings.

(intransitive) To drop rapidly.

(transitive) To smoothe and polish, e.g., gemstones or pebbles, by means of a rotating tumbler.

(intransitive, informal) To have sexual intercourse.

(intransitive) To move or rush in a headlong or uncontrolled way.

To muss, to make disorderly; to tousle or rumple.

(cryptocurrencies) To obscure the audit trail of funds by means of a tumbler.