Green’s Dictionary of Slang

an excl. of surprise.

1959		Galton & Simpson ‘Hancock in Hospital’ Hancock’s Half-Hour [radio script] Oh swipe me, how glittering.
1975		C. Dexter Last Bus to Woodstock 160: We-ell, I s’pose it could a been a fella, bu’ swipe me mate, I could a swore as both of ’em was women.
1986		Beano Comic Library No. 96 39: Swipe me! He can shift!