verb / noun
goof
GOOF/ɡˈuf/
To act in a silly or careless way.
She notices her goof as tea pools around the upside-down cup.

Etymology
Goof first meant a stupid person and may be a variant of dialect goff, “foolish clown.” The mistake sense arose later, probably under the influence of gaffe, “blunder.”
In context
he took ones of me that looked like a clown. In his eyes, I was not a beautiful daughter. And so I sort of thought of myself as being a goof
More examples
- The kids goof around while they wait for the bus.
- I goofed and sent the message to the wrong person.
- My brother is a lovable goof who makes everyone laugh.
Forms
goof · goofs · goofed · goofing
goofy adjective — Silly in an amusing, playful way.