sag wagon

English

Etymology

Probably sag +‎ wagon; sometimes also said to stand for "support and gear" or "support and grub" (i.e. food).

Noun

sag wagon (plural sag wagons)

1. A truck, van or other support vehicle used during cycling events, designed to hold food and other equipment for participants, and to pick up and carry any cyclists (and their bicycles) who can no longer ride.

See also

• broom wagon

References

• http://www.wisegeek.com/what-is-a-sag-wagon.htm