wacko or whacko /wakˈō/ (slang)

1. Mad
2. Eccentric

A deranged or eccentric person

• egotists
• egotize
• egotized
• egotizes
• egotizing
• ego-trip
• ego-tripper
• ego-trippers
• ego-trips
• egregious
• egregiously
• egregiousness
• egregiousnesses
• egress
• egressed
• egresses
• egressing
• egression
• egressions
• egressive
• egressives
• egret
• egrets
• EGU
• egurgitate