With nail polish remover against chewing gum
Cold, Spüli or tape does not help?
If the chewing gum layer on the clothes is very thin (like the skin of a bubble gum bubble), nail polish remover is recommended! Mine is without acetone, that too worked wonderfully and did not attack the jeans color. (For safety, the color fastness first down the hem or try it.)
Then dab the areas with a cotton swab soaked, soak for about half a minute and scrape off with a knife. In the washing machine - ready!