To have something good and exchange it for something worth less, come out on the losing end of an exchange.
cambiar chinas por botellas
cambiarle el agua al canario pajarito
caminar con los codos
stingy
camón
candela
mischievous children or restless adults
caneca
cangri
cangrimán
cañiña de mono
canoa
cantarse pelado
cantazo
canto
capear
to understand, to accept a proposal
cara de lechuga
cara larga
Caramba!
carambola
carcacha
clunker, a beat up car