when my sis went to San Diego State she got completely sh*t face wasted one May 4 according to her roomie - who we know. according to the roomie my sis was running up and down the hallway of the dorm giggling "It's Quatro de Mayo, it's Quatro de Mayo" many, many times. ever since then we have always called her on may 4 to wish her a happy "Quatro de Mayo". as expected i did that on wednesday and as expected she told me to "F off"!