pulled a wild hare out of my ass

Miraculously getting the motivation to accomplish something difficult and actually pulling it off in the last minute.
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A combination of the phrases "pull it out of my ass" (i.e. doing something difficult in the last minute) and "got a wild hare up my ass" (i.e. unexpectedly having motivation to do something).

I pulled a wild hare out of my ass and wrote my 10 page report starting at 3am the night before it was due.

by Gypsy Scotty March 1, 2011

wild and out

Proper English for wil 'n out.

When the lady came walking past, that old chap went wild and out.

by randydarsh April 3, 2015