To engage in some activity with vigor.
To crash into something.
To invest a resource (money, material, energy) into something.
To move or rush in a headlong or uncontrolled way.
To smoothe and polish, e.g., gemstones or pebbles, by means of a rotating tumbler.
To muss, to make disorderly; to tousle or rumple.
To obscure the audit trail of funds by means of a tumbler.
To perform gymnastics such as somersaults, rolls, and handsprings.
To fall end over end; to roll over and over.
To have sexual intercourse.
To drop rapidly.
A fall, especially end over end.
An act of sexual intercourse.
A disorderly heap.