the act of going in to give somebody a hi-five, but instead you you make your hand go limp and yell out "Dead Fish!"
caution, this can be very emotional for some, and can cause some misunderstanding between friends.
Amy: Hey Quinn.. Hi-five?
*puts hand in the air*
Quinn: Yeah sure!
*puts hand in the air and goes in for the act of friendship*
Amy: *drops hand in limp motion*
"DEAD FISH! hahaha!!"