Dull as a froe (really dull)
Fine as frog hair, split four ways and sanded (very fine)
sharp as a tack (very smart)
Uglier 'n sin (extremely ugly)
Nervous as a long-tailed cat in a room full of rocking chairs (very nervous)
Pant'n like a road lizard (breathing really fast)
Barkin up the wrong tree (asking the wrong questions, or accusing the wrong person)
Cute as a button (very cute, usually a baby)
running around like a chicken with its head cut off (going from thing to thing without getting anything done)