Helpful advice to give, in the event of someone farting loudly, in public.
1. Refers to 20th Century cars, where the "choke" would give more gas to the acceleration
2. Best delivered using an Australian accent
Scene: Very quiet, contemplative, fine art museum moment. While gazing thoughtfully at Monet's lilies in their pond, large Marge lets rip with a loud, egg-tinged room emptier. A Helpful Gentleman suggests: "Little more choke and you would've started luv!"