cosh·er \ˈkäshə(r), ˈkōsh-\verb (coshered ; coshered ; coshering \-sh(ə)riŋ\ ; coshers) Etymology: Irish Gaelic cōisir feast, banquet intransitive verb 1.Irish: to lodge and eat at the expense of dependents or tenants 2.Irish: to live at another's expense : sponge 3.Irish: to make a visit : have a friendly chat transitive verb : pet, pamper