#1 go-cart n. [walker, baby-walker] an enclosing framework on casters or wheels; helps babies learn to walk. wn
#2 go-cart n. [handcart, pushcart, cart] wheeled vehicle that can be pushed by a person; may have one or two or four wheels; "he used a handcart to carry the rocks away"; "their pushcart was piled high with groceries". wn
#3 go-cart n. [baby buggy, baby carriage, carriage, perambulator, pram, stroller, pushchair, pusher] a small vehicle with four wheels in which a baby or child is pushed around. wn
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