Gadding p. pr. & vb. n. : of Gad

Gadding a. & n. : Going about much, needlessly or without purpose.

Example:
How can you tell when chocolate's gone gad?

Taxonomy
Envy, passion, walketh, streets, car, Unanswered questions, horses, cattle, mining engineering, Saunders Comprehensive Veterinary Dictionary, Webster 1913, Bacon, nuns, tongue, Tennyson, carries, drilling machine, drill.

Defination from the web:
gadding passion, and walketh the streets ... The good nuns would check her gadding tongue. Tennyson. Gadding car, in quarrying, a car which carries a drilling machine so arranged as to drill a line of holes. ...