all in
To be totally committed to something.
Possibly originating with gambling games such as Texas Hold 'em style poker, where the maximum 'raise' is to bet your full stack of chips.
Synonyms for all in
On this page, you will find 30 slang terms related to all in. Some of the top words include: cuz, the dub, Gamblorian Society, dumper, Balla, and 25 more.