, -snefet, -snivet. A cuff on the ear or the side of the head: resp. late C.18–mid-19 (Grose, 1st ed.), then dial.; C.16 (Udall); C.16 (Palsgrave: OED). Perhaps a reduplication of whister, that which ‘whists’ or puts to silence; even so, -clister may pun clyster, an enema, while -snefet, -snivet may be cognate with the vv.
snite snivel. Perhaps orig. dial., as the Palsgrave locus indicates; certainly dial. are the variants whisterpoop (C.17–20), whistersniff (C.19–20), and whister-twister—which last (C.18–19) is certainly a punning reduplication. See also wisty-castor."