stick-on adjective 1stick on verb 1forms 5 adjective1 •Fastened by means of sticking. stick on verb1 •(UK, slang) To charge (someone) with an offence.[…] took him to the nick, stuck him on, and he spent the night in the flowery. — 1931 formsstuck on · sticking on · sticking someone on · sticks on · sticks someone on