- to boast or praise.—_Ancient English._
More About crack up
Position in the dictionary: 816 of 4022 slang words.Next words in the dictionary: cracked up, cracking a crust, crackle, cracksman, cram, crammer, cranky, crap, crapping case, craw thumper
Previous words in the dictionary: crack a bottle, crack, crabshells, crabs, crab, coxy-loxy, cow’s grease, cowan, cow-lick, cow-hocked