Green’s Dictionary of Slang

1. (also pumped out) out of breath, exhausted [one’s heart is pumping fast].

1858		R.S. Surtees Ask Mamma 297: ‘Where’s your own horse?’ Monsieur – Pomped out de beggar; had no go in ’im; left him in a ditch.
1876		Besant & Rice Golden Butterfly I 13: ‘Getting pumped,’ said Ladds the critical.
1889		Kipling ‘Shadow of His Hand’ in Civil & Military Gaz. 2 Aug. (1909) 39: He would wait till the old man was pretty well pumped out .
1893		K. Mackay Out Back 127: Why, you are clean pumped! I mean blown!
1901		Boy’s Own Paper 12 Jan. 232: ‘Stop a minute!’ panted little Alison. ‘I’m pumped.’.
1901		Bulletin (Sydney) 7 Dec. 31/2: At larst the alligator gets a bit pumped, an’ Bill manages to ketch up, an’ lets drive fair on the head.
2009		T. Black Gutted 247: ‘You look pumped’ [...] ‘That wee prick’s gonna be pumped’.

2. exhausted from a surfeit of sexual intercourse [ext. of sense 1 plus pump v. (3)].

1951

Kerouac letter 10 Jan. in Charters I (1995) 300: I was completely bushed and pumped out.

3. (orig. US) having well-developed muscles [pump iron under iron n.].

1990		Kool G Rap ‘’Rikers Island 🎵 Never fess, bench press so that you can be pumped.
2003		J. Lethem Fortress of Solitude 428: You’d best have gotten pumped quickly at Rikler’s or you wouldn’t even be able to budge the set [of weights] here.
2023		F. Bill Back to the Dirt 13: [R]eaching across his pumped chest, forearms bulged.

4. (US campus) excited, in high spirits.

2001		D. Jenkins Money-Whipped Steer-Job 185: [Y]ou can’t help but be pumped about the fact that you’re playing in the U.S. of Open [sic].
2004		J.A. Juarez Brotherhood of Corruption 229: ‘Keep your pants on just a little longer. The girl’s in the bar now.’ I was pumped, knowing that girl was a street term for cocaine.
2011		Myers & Workman Kick 123: Coach Hill was pumped at halftime.
2016		Longview News-Jrnl (TX) 10 Jan. C6/5: ‘I wish I could say [...] it’s a super positive move and everyone’s so pumped about it’.
2017		T. Spicer Good Girl Stripped Bare 48: Graduating with a journalism degree and radio scholarship, I’m pretty pumped.