Its an expression like a poker play but hope he wasnt literally putting it all in.   An example of that was the Australian miner who got divorced and literally sold his life including the job and everything he owned.
The OP didnt sell his job and I hope was not being quite that extreme to have nothing left.  My suggestion was he buy a smaller house and only 'gamble' the difference, it would still amount considerably if bitcoin were used as a global currency by even 1%