pumped-up adjective6 •inflated •tense with excitement or enthusiasm •(informal) Excited, particularly due to anticipation. •(informal) Having muscles in an engorged state following exercise due to increased blood flow. •oversizedThe stalked 'periscope' eyes of the Fiddler crab, which give it a panoramic view all the better to appreciate the outrageously pumped-up left claws of its waving fellows. — 2012 •raised by pumping formsmore pumped up · more pumped-up · most pumped up · most pumped-up