Hittin' Looney Switches

Several definitions:

1.Colorful description of a person experiencing a mental breakdown.

2. Also used sexually to describe a person's often incoherent groans, moans and babble during heightened sexual activity.

1. Joe started hittin' looney switches when he decided to rob the 7-11 buck naked armed with a 2x4 and his trusty big gulp cup.

2. One who can be hittin' looney switches during sexual intimacy with their partner is a good lover.