Green’s Dictionary of Slang

panter n.1

[the line ‘As pants the hart for cooling streams / When heated in the chase’ (Nahum Tate and Nicholas Brady, New Version of the Psalms, 1696); ult. f. Ps. 42:1, ‘As the hart panteth after the water brooks so panteth my soul after thee, O God’. The pun indicates, as does B.E., that sense 1 is the general use. However, Grose (1785) cites ‘the animal’ and in 1796 adds ‘the human heart, which temporarily pants in times of danger’ ]

1. the human heart.

[Ire]Head Canting Academy (2nd edn).
[UK]B.E. Dict. Canting Crew n.p.: Panter a Heart.
[UK] ‘Retoure My Dear Dell’ in Farmer Musa Pedestris (1896) 44: Didst thou know, my dear doxy, but half of the smart / Which has seized on my panter, since thou didst depart.
[UK]Bailey Universal Etym. Eng. Dict. [as cit. c.1698].
[UK]B.M. Carew Life and Adventures.
[UK]Scoundrel’s Dict. 17: Heart – Panter.
[UK]Grose Classical Dict. of the Vulgar Tongue (3rd edn).
[UK]Lex. Balatronicum.
[UK]Egan Grose’s Classical Dict. of the Vulgar Tongue.
[UK]G. Kent Modern Flash Dict. 24: Panter, heat [sic].
[UK]Flash Dict. in Sinks of London Laid Open [as cit. 1835].
[US]Matsell Vocabulum 63: panter The heart. ‘The lead reached the poor cove’s panter, and so there was nothing to be done but to give him a ground sweat,’ the bullet entered the poor fellow’s heart, and all that we had then to do was to put him in the grave.
[Aus]C. Crowe Aus. Sl. Dict. 56: Panter, the heart.

2. (UK Und.) a hart or male deer.

[UK]Grose Classical Dict. of the Vulgar Tongue.
[UK]Lex. Balatronicum.
[UK]Egan Grose’s Classical Dict. of the Vulgar Tongue.