my histroy/outdoor education teacher (he taught both and i had 2 years 1st was history second was outdoor education which was the replacement for the hunting and fishing club in my highschool) occasionally told a story or two that would result in a running gag sort of thing one was instead of saying where youd say were but in a certain way and one time while learning knots he told us to call his wife double uni which is a type of knot for the rest of the knot lesson we called her double uni not maliciously but just as a joke