The term 'Beats the Pants Off' is an idiom that means to defeat someone or something overwhelmingly. The crossword solutions for this term are 'Routs' (5 letters) and 'Tromps' (6 letters). Routs is a verb meaning to drive out or force to retreat, while Tromps is a verb meaning to trample or stomp heavily. Therefore, both words can be used to describe a situation in which one person or thing defeats another in a decisive manner.