Any sentence followed by "Bless her heart" (as in, "She's a little dim, bless her heart")
She doesn't have the sense God gave a billy goat
Mind your P's and Q's (oops, that's been said-oh well)
Don't be a flibberdegibbet
Don't read me the entire magillah (from mother)
All that and a bag of chips
The bee's knees
I wanna knock you into next week! (meaning a punch, or..something
)
A bird in hand is worth two in the bush
Robbing Peter to pay Paul