Foam or froth made by soap moistened with water.

Foam from profuse sweating, as of a horse.

To form lather, or a froth like lather; to accumulate foam from profuse sweating, as a horse.

To beat severely with a thong, strap, or the like; to flog.

beat severely with a whip or rod; "The teacher often flogged the students"; "The children were severely trounced"

a workman who puts up laths

Lather is the title of a song by the American rock band Jefferson Airplane. It is the opening track on the 1968 album Crown of Creation. Its lyrics are about a 30 year old man, given the name "Lather", who still acts like a child.

form a lather; "The shaving cream lathered"

To spread over with lather; as, to lather the face.