waking up pregnant Share definition Flag when a person gets unbelievably drunk that its inevitable they will wake up pregnant, funnier when used on guys Mike had 4 long islands and 2 mind erasers last night that betch is definately waking up pregnant. waking up pregnant by preggoleggo June 11, 2011 0 0 Get merch Get the waking up pregnant mug. Buy Now — $32.95 See more merch