see what sticks

ain't what it used to was

Is not what it used to be; (expressing nostalgia).

come what may

In spite of anything that might happen; whatever may occur.

do exactly what it says on the tin

To do what is described or what one would expect, with no further explanation needed.

do what

An intensified version of what? or huh?, expressing surprise or lack of comprehension

for all the world to see

in plain view; clearly visible

get what one asked for

Synonym of get what's coming to one.

give someone what-for

To admonish or berate; to speak angrily at somebody.

give what for

To scold; to punish, especially verbally.