To be cobgerded (adjective) is to be severely happy or excited about something.
For something to be cobgerd (adjective) it would be very funny.

Synonyms:
Happy, Excited, Joyous, Joyful, Gleeful, Thrilled, Exuberant, Delighted, Amused, Funny, Amusing, Humorous, Comical, Hysterical, Uproarious.
"I'm so cobgerded that we're going to Disneyland!"
"That's a coberd joke!"
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