Brain Teaser's / Riddels. Number 17

Each of the following represents a familiar word or phrase. Example: CCCCCCC would be the 'seven seas'. Can you guess the rest?

1] go it it it it
2] cHIMp
3] ecnalg
4] ALL world
5] math the      Pick the tomato, get the answer!

1] Go for it
2] Making a monkey out of him
3] A backwards glance
4] Small world after all
5] The after math