lawnmow verb2 •(rare) To mow a lawn.All last week I lawnmowed, pianoed, tennised, read a little of “What Makes The Wheels Go Round” — 1940 •(rare) To cut with a lawnmower.It has been kept lawnmowed ever since. — 1910 formslawnmowed · lawnmown · lawnmowing · lawnmows