Representing means playing as if one is holding a specific hand whether s/he is or not. For example, if you bet big on a board of A♠ K♦ 3♥, you’re representing a strong hand like AA, KK, AK, AQ or 33, no matter what cards you’re actually holding.
If you play Pot Limit Omaha, this tool will blow your mind. It's called the PLO Matrix. This easy-to-use PLO solver shows you exactly how to play any hand in any preflop situation. All it takes is two clicks (other than the initial setup). [...]