sipernorth.dial.|ˈsaɪpə(r)| Also s(e)yper. [f. sipe v.] An immoderate drinker; a toper. 1803R. Anderson Cumbld. Ball. (c 1850) 66 The Hiverby lads at fair drinkin are seypers.1885Hall Caine Shadow of a Crime xxv, You're worse than he is, you old sypers.