not all is cracked up to be

(redirected from not what something is cracked up to be)

not all something is cracked up to be

 and not what something is cracked up to be
Fig. not as good as something is said to be. (Not always in the negative.) This isn't a very good pen. It's not all it's cracked up to be. Is this one all it's cracked up to be?
See also: all, cracked, not, up