Migreturn is when all the wives in Rotterdam hide their husbands because Migle is coming back for the weekend with a thirst the size of 10 atomic bombs.
Kevin: Hey Judie, have you heard that Migle is coming back to town?
Judie: OH SHIT!! The Migreturn is finally upon us... I should hide my husband!!
Kevin: Your hubby ain't safe even if you hide him. If aliens were trying to find your hubby and probe him, he would be safer than during the event of Migreturn...