Okay so these are the only ones I can really hazard much of a half decent guess at right now

(sorry if all of these have already been said which is very likely)
#2: Over the moon
#4: Bacon number
#6: Storm in a teacup
#11: Greasy spoon
#14: Swan song
#22: The lion's share
#25: Pissing contest
#33: Half off
#34: Throw the book at him