Sexual act where the male lies down on the floor naked and allows the female(s) to grind a stiletto heel on his nutsack until he busts his nut.

The horrible moment when you realise that you have accidentally done something very slightly wrong which has very bad (usually embarassing) implications for you. This is typically the moment of realisation that you just sent a dirty text message to a close member of family, typically your mother, rather than the intended recipient.