Maxi Pad and Fart

Listen here, you smooth-brained buffoon, you clearly don't understand the sheer brilliance of this joke. You, who I can only assume, have never had a single thought of any value. So, a maxi pad is a pad worn for menstruation, and a fart is, well, a fart. The "wind beneath my wings" is a famous phrase for someone who supports you. The humor comes from the unexpected pairing and the pun on 'wind'. It’s clever, but I wouldn’t expect you to get it.