Definition

Amusingly silly, awkward, or eccentric in a harmless, endearing way; prone to acting in a ridiculous or clownish manner.

Example Usage

He did a goofy dance that made everyone laugh at the party.

Origin

From 'goof,' which itself likely derives from a dialectal variation or alteration of 'foolish,' popularized by Disney's character Goofy in the 1930s.

Fun Fact

Goofy is more affectionate than 'dumb' or 'stupid'β€”calling someone goofy usually means they're endearingly funny rather than genuinely unintelligent.

Source: Definition backfill (hailey)