wacky Meaning, Definition & Usage

adjective satellite ludicrous, foolish
cockamamie; goofy; sappy; whacky; silly; zany; cockamamy.
- gave me a cockamamie reason for not going
- wore a goofy hat
- a silly idea
- some wacky plan for selling more books
adjective satellite informal or slang terms for mentally irregular
loco; loopy; bats; haywire; nuts; balmy; kooky; nutty; barmy; around the bend; buggy; kookie; loony; whacky; crackers; round the bend; daft; dotty; batty; cracked; fruity; bonkers.
- it used to drive my husband balmy

G. wacke, MHG.wacke a large stone, OHG. waggo a pebble.

(Geol.) A soft, earthy, dark-colored rock or clay derived from the alteration of basalt.