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A caveman’s way of saying they’re not totally brain-dead. Like when SpongeBob went caveman and said ‘Spungar’, it was just a fancy word for ‘I’m not an idiot.’
@cavemanbob: ‘Spungar! I’m not totally stupid!’
My cousin called me a ‘galunga’ because I forgot my own name.
‘Spungar! I remember the password now!’, SpongeBob, 2004