wag·on 
/ˈwægən/ noun
plural wag·ons /ˈwægən/ noun [count] 1 : a vehicle with four wheels that is used for carrying heavy loads or passengers and that is usually pulled by animals (such as horses)
▪ Pioneers crossed the American Midwest in wagons. — see also bandwagon, chuck wagon, covered wagon, paddy wagon, patrol wagon 2 : a small, low vehicle with four wheels that children play with
▪ He pulled his stuffed animals around in a little red wagon. 3 US : station wagon 4 Brit : a railway car that carries goods
▪ Pioneers crossed the American Midwest in wagons. — see also bandwagon, chuck wagon, covered wagon, paddy wagon, patrol wagon
▪ He pulled his stuffed animals around in a little red wagon.
circle the/your wagons
chiefly US, informal : to gather a group of people together in order to protect them from being attacked — usually used figuratively ▪ Reporters tend to circle the wagons [=tend to join together to defend themselves] whenever the media are attacked for bias.
hitch your wagon to
chiefly US, informal : to rely on (someone or something) for success
▪ The team has hitched its wagon to its star pitcher.
▪ The team has hitched its wagon to its star pitcher.
on/off the wagon
informal ◊A person who is on the wagon has stopped drinking alcohol.
▪ He has been on the wagon since his child was born. A person who had stopped drinking alcohol but has started again has fallen off the wagon. ▪ After a year of sobriety, she fell off the wagon.
▪ He has been on the wagon since his child was born. A person who had stopped drinking alcohol but has started again has fallen off the wagon. ▪ After a year of sobriety, she fell off the wagon.
