Excited, particularly due to anticipation.(adjective)
Having muscles in an engorged state following exercise.(adjective)
Simple past tense and past participle of pump up.(verb)
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Use "pumped up" in a sentence
"His undoubted merits in detail - his half-wistful cynicism, his capacity for evoking simple emotions, his deft skill at managing the puny difficulties of vers libre - were thereupon pumped up to such an extent that his defects were lost sight of."
"He pumped up the tires and oiled it and set out squeakily to explore the neighborhood."
"But nothing kept the dust at bay for long, and after a while the creek dried up to a string of waterholes, so that there was no water to be pumped up from it to kitchen or bathroom."