Green’s Dictionary of Slang

1. overjoyed with, carried away, delighted.

1984		B. Ellem Doing Time 63: I was rapt when I got my clock in because I could tell what time it was myself.
1988		McGill Dict. of Kiwi Sl. 91/2: rapt overjoyed, short for enraptured; eg ‘We were just rapt to be selected, yeh, it’s a great honour, you know.’.
1998		Bug (Aus.) 16 Aug. 🌐 Most of the time he was just a spectator and then he would be really rapt when he found he could actually join in.
2006		Age (Melbourne) 6 Jan. 🌐 I was rapt when I heard the old pub had burned down. A thirsty shearer would have burned it down for sure.
2018		R. O’Neill ‘Ocker’ in The Drover’s Wives (2019) 181: He was a good root so she was rapt.

2. emotionally and/or sexually excited by.

1979

Lette & Carey Puberty Blues 70: He’s rapt in ya.