e-shoes

A prototype of a sole that generated electricity but failed and exploded after taking five steps
it can be used for either:
1.an insult
2.a failed idea

definition1
person1:You have no life whatsoever. Try getting one on ebay.
person2:Oh yeah? Well suck my E-shoes
defintion2
Person1:How's your product going.
Person2:It's an e-shoe all right.