what does digging your own grave mean
Dig your own grave (idiom) Try to guess the meaning of the idiom 'dig your own grave' by looking at the picture. Dig your own grave: doing something that will cause you to have problems in the future. Notes: A grave is a place where a dead body is buried (usually in a hole in the ground). The man in the picture above is using a shovel to dig a hole in the ground for his grave. If you're digging you're own grave, you're creating the place to bury your own dead body.
Grave, sober, solemn refer to the condition of being serious in demeanor or appearance. Grave indicates a weighty dignity, or the character, aspect, demeanor, speech, etc., of one conscious of heavy responsibilities or cares, or of threatening possibilities: The jury looked grave while studying the evidence.