Here are some light-hearted and funny insults for someone who might be “gooning” (if we consider gooning to be engaging in silly or foolish behavior):
- "Professional goonologist in the wild!"
- "Congratulations! You've single-handedly reinvented the word 'goober.'"
- "You're like a one-man circus, but the clowns forgot how to juggle!"
- "Did you come from a land of misfit toys?"
- "You're living proof that evolution can go in reverse."
- "If brains were dynamite, you wouldn't have enough to blow your nose!"
- "You’re the reason the gene pool needs a lifeguard!"
- "You put the 'fun' in dysfunctional!"
- "You're like a cloud—when you disappear, it’s a beautiful day!"
- "If laughter is the best medicine, you're the reason they invented the placebo."
Remember, humor is subjective, so use these in good spirits and with people who can take a joke!