Green’s Dictionary of Slang

an excl. of dismissal, the hell with you!

1599		H. Porter Two Angry Women of Abington A3: His men be good fellows, so it is, if they be not let them go snick up.
1600		Shakespeare Twelfth Night II iii: We did keep time, sir, in our catches. Sneck up!
c.1607		Beaumont & Fletcher The Knight of the Burning Pestle II i: No Michael, let thy father go snicke-vp, he shall neuer come between a paire of sheets with me againe.
c.1620		J. Hall Discovery of New World Bk 2 106: I am in great perplexitie, least my country-women should have any understanding of this state; for if they have, wee may go snic up for any female that will bide among us .
1631		T. Heywood Fair Maid of the West Pt I I i: Goe, let your Master snick-up.
1663		W. Davenant Play-House to be Let Act V: He may go snick-up if he hates Nymphidius.