hot up

hot up (http://definr.com/hot up)

     v 1: gain heat or get hot; "The room heated up quickly" [syn: heat,
           heat up] [ant: cool]
     2: make more intense; "Emotions were screwed up" [syn: heat up,
         screw up]
     3: make more powerful, of cars and motorcycles [syn: soup up,
         hop up]