hot (adj.) 4
active, vigorous
1H4 I.i.34 [Westmorland to King Henry, of the proposed expedition] this haste was hot in question
H5 III.ii.3 [Nym to Bardolph] The knocks are too hot
H8 V.i.175 [Old Lady alone, of receiving more money for bringing her news] while 'tis hot, / I'll put it to the issue [i.e. I'll act now while things are happening]
KJ III.iv.11 [Lewis the Dauphin to King Philip, of England's victory] So hot a speed, with such advice disposed ... / Doth want example
WT IV.iii.67 [Clown to Autolycus] If this be a horseman's coat, it hath seen very hot service