boot
n.— «The regulation requires all businesses that use shopping carts to submit an “abandoned cart prevention plan” to the city. Solutions could range from hiring parking lot attendants to installing devices that prevent carts from leaving a store. The latter, known as Electronic Theft Deterrent Systems, are an increasingly popular option locally. The ETDS is more commonly known as a “boot” and relies on a radio-frequency-controlled wheel lock that triggers when a cart strays too far from a store.» —“Shopping Cart Crackdown” by Serdar Tumgoren Gilroy Dispatch (California) Apr. 4, 2007. (source: Double-Tongued Dictionary)
Further reading
Quiz Guy John Chaneski has been pondering those old digital displays on car dashboards that sometimes cut off part of the name of the song playing on the radio. For example, what song would really be playing if the truncated title was...
A listener named Tami contacted the show by WhatsApp to say that whenever someone would be talking about a subject that nobody else knew anything about, her father-in-law would respond with I had one of those, but the wheels came off. This is part...