Common seller
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
A common seller of any commodity (particularly under the liquor laws of many states) is one who sells it frequently, usually, customarily, or habitually ; in some states, one who is shown to have made a certain number of sales, either three or five.
Slate v. O'Co.n-ner, 49 Me. 596; State v. Nutt, 28 Vt. 598; Moundsville v. Fountain. 27 W. Va. 194; ComV. Tubbs, 1 Cush. (Mass.) 2.