Splurging, then never regaining your mojo. Such was the case when Willie Harris had 6 hits in a game for the Atlanta Braves, then hit .190 in 51 games after.
"Hey bro, I just pulled a Willie Harris."
"What bro? That sounds kinda homo."
"Nah man, I just jerked it before I knew mah girl was comin' over, then when she got here, I couldn't finish."
Pulling a William indicates that you have royally screwed up. Somehow, despite every possible odd, you managed to make the impossible and incomprehensible existent. Pulling a William also involves the "William Puller" to laugh maniacally after committing their act.
Barely squeaking by (or barely passing), or pulling it out of your ass.
In reference to the radio show, "The Bobby Bones Show" - when the cast was playing The Name Game, the cohost Lunchbox barely squeaked by naming "Free Willy" as a "Bill" or "William," thus causing controversy in the studio.