Dressed to kill and In on

Dressed to kill adjective - Dressed in fancy or formal clothing.

In on and dressed to kill are semantically related. In some cases you can use "In on" instead an adjective phrase "Dressed to kill".

In on adverb - Participating in or knowledgeable out.

Dressed to kill and in on are semantically related. Sometimes you can use "Dressed to kill" instead an adjective phrase "In on".