The text is a play on the common adage 'two wrongs don't make a right', which means that it's not justifiable to do something bad just because someone else has done something bad. The humor comes from the suggestion of persisting in wrongdoings (trying three) as a solution, which is an unexpected twist on the original meaning but does not involve a play on words or similar-sounding words.
If two wrongs don ' t make a right , try three .