Slumsa

As defined by the Cleasby & Vigfusson Old Norse to English dictionary:

slumsa

að, to slop and swill, like swine.

Possible runic inscription in Younger Futhark:ᛋᛚᚢᛘᛋᛅ
Younger Futhark runes were used from 8th to 12th centuries in Scandinavia and their overseas settlements