This occurs when one person, in an epic show of douchebaggery, shifts the attention from what should be one person's unforgettable life moment to their own undeserving ass.
New mom to her husband: It's a boy!
Situational Kanye: Hey, no offense to y'all, I let y'all finish giving birth and ay'thing, but y'all shoulda had a girl. Girls are so much better, no disrespect, but they deserve to get born more than any other gender.
Husband: Stop pulling a Kanye and hand me my child back!