1st_ Hot . It has or produces heat. Figuratively, it is "collectic, angry, or irritated"; he is also "sexually aroused." 2nd_ First (such as 'I'), second (as 'you') and third (such as 'he/she') persons in singular of the present subjunctive mode, and second (such as 'you' ) and third (such as 'he/she') people in singular imperative for the verb warm up. View verbs/hot .