(oneself) silly

To a state of giddiness or incoherence. Often used with the verbs "laugh" and "drink." That movie was hilarious! We laughed ourselves silly from beginning to end! A: "Ugh, I feel so horrible this morning." B: "Tough cookies. If you're going to drink yourself silly like that, then this is the price you're going to pay." Oh man, we ate ourselves silly at Oktoberfest—there were so many delicious foods to choose from!

— yourself silly

be unable to act rationally because of doing something to excess.

1998 Time Out N.Y. Drink yourself silly at the long bar or chow down at the large tables in the back.