STD Grab Bag refers to a person who is so promiscuous that he or she has many STD's (sexually transmitted diseases). Like a grab bag that you would get at a birthday as a child you would pull out many wonderful gifts such as: a
pencil,
pixie stix, stickers, or a puzzle. But with an STD Grab Bag you can pull out: genital warts, syhpillis,
chlamydia, or ghonnorea. Yay!