This expression is used when you have been in a relationship for an extensive period of time and you have decided you need to add some “spice” into your life. This expression usually refers to
a one night stand with an attractive member of the opposite or same sex. Usually only “
animalistic” sex takes place. Most of the time no words are exchanged during the evening, it is just used as a night of passion between the two
sexes.
Be aware that doing something like this with a friend can cause serious tension and in most cases does effect the friendship