drink, laugh, shout, etc. yourself silly
drink (oneself) silly
To drink alcohol in large quantities. Of course you don't remember last night at the bar—you drank yourself silly!
laugh (oneself) silly
To laugh a lot. I love getting together with my childhood friends because we always seem to laugh ourselves silly.
shout (oneself) silly
To shout a lot. Fred lost his voice after shouting himself silly at the football game last night.
ˌdrink, ˌlaugh, ˌshout, etc. yourself ˈsilly(informal) drink, laugh, shout, etc. so much that you cannot behave in a sensible way: Everyone was too busy laughing themselves silly to notice her quietly leave the room.
See also: silly