When somebody sees you sneeze, blow your nose, scratch yourself, or touch something dirty just prior to shaking your hand, and you are forced to use your left hand instead of your right to avoid further embarrassment and grossing the person out.
Dialogue involving a reverse handshake:
1: Hi, 2! (reaches to shake 2's right hand)
2: (quickly sneezes, grabs a tissue to quickly clean his right hand and shakes using his left hand.) Sorry, Hi!
1: Hi, 2! (reaches to shake 2's right hand)
2: (quickly sneezes, grabs a tissue to quickly clean his right hand and shakes using his left hand.) Sorry, Hi!
by redblade77 January 12, 2009
Verb. The act of masturbating with your left hand (even when right-handed) for the simple reason of keeping your right hand pure in the eyes of Allah.
Person 1 thinks: "Man, good thing I did the Reverse Haji Handshake earlier today or I might feel morally upset about shaking this Tribal Leader's hand."
Tribal Leader: "Durka Durka Akbar."
Tribal Leader: "Durka Durka Akbar."
by seibmoz amabo August 4, 2010