when somebody in your gang
gets all up in your face, and you tickle them and they start tickling you back and after that it is all fun. you go out and maybe get an ice cream cone.
when stanley gets all up in michaels face, darryl tells him to use fluffy fingers so he gets starts tickling stanley and stanley tickles him back. of course, the fluffy fingers technique ended up with them all going out to get an ice cream cone.