This term refers to an act whereby a young lady circumvents the loss of her viginity by practicing anal instead of vaginal intercourse. Its namesake refers to the compromise of 1820, whereby Missouri was excluded from inclusion as free state, even though it was above the Mason-Dixon line. Similarly, When a young lady finally is subject to vaginal intercourse, it is known as bleeding Kansas
, which refers to the after effects of the Kansas-Nebraska act of 1854 which revoked the Missouri Compromise.
Frank's girlfriend wanted to keep her flower intact but frank needed release. Because her braces cut him too badly, they had to go with the Missouri compromise.