The crossword solutions for the term 'THAT'LL SHOW YOU!' are HAH (3 letters) and SOTHERE (7 letters). This phrase is often used as a retort to someone who has been proven wrong or made a mistake. It is usually said in a triumphant tone, implying THAT the speaker was right all along. The two words in the crossword solutions, HAH and SOTHERE, are both exclamations of triumph and can be used interchangeably with the phrase 'THAT'll show you!'