A phrase usually used to goad someone into an outlandish/awesome act. Similar to the phrase "go big or go home" this phrase considers added, undeniable reasoning; If you have no intention of going big, don't bother coming out at all.
"Guys, don't you think 380 Jello shots is a little excessive?"
"GO BIG OR STAY HOME!"
from the movie Space Jam. Often used by men who are dating women that are no good for them, in circumstances such as Facebook. usually found by the next girlfriend many years later.
(On a guy's facebook page) "I don't want to go to school today I want to stay home and bake cookies with you...(insert skank's name here)".