1 informal a small or inadequate budget:many early studies were done on a shoestring [as modifier]:a shoestring budget
2North American a shoelace.
adjective
North American
(of a save or tackle in sport) near or around the ankles or feet, or just above the ground:the Mets center fielder made a shoestring catcha shoestring tackle
shoestring in other Oxford dictionaries
Definition of shoestring in the US English dictionary