Tin Can
Noun · Slang & Abbreviations
Definitions
A dismissive label for something flimsy, underpowered, or built too cheaply for the load placed on it. In engineering slang, calling a service a tin can means nobody trusts it under stress.
In plain English: Something flimsy or underbuilt for the job it has to do.
Example: "That tiny single-node database was a tin can pretending to be an enterprise system until traffic exposed the truth."