go moggy

Etymology
Derived from the Unimog, a brand of rugged four-wheel drive trucks popular in rural areas of South Africa and Zimbabwe.

Verb

 * 1)  To go without restraint; to go wild; to be adventurous.
 * 2)  To go crazy; to be somewhat delirious.
 * 3)  (usually in the past tense, as in "gone moggy") To become broken, disorganized or dysfunctional.
 * 1)  (usually in the past tense, as in "gone moggy") To become broken, disorganized or dysfunctional.