ton-up adjective 1noun 1forms 1 adjective1 •(UK, slang) fond of travelling at high speeds noun1 •A speed of 100 miles an hour, especially on a motorbike.Are you hanging up a stocking on your wall? It's the time that every Santa has a ball Does he ride a red-nosed reindeer? Does a ton-up on his sleigh Do the fairies keep him sober for a day? — 1973 formston-ups
