'pants'

where does a nick name even come from?
we have tink (who has informed me that she is to be called alexa at school), jossy wossy and now we have pants (that would be asher). he has gone through several nicknames and responds to many variations of his name (including, ashy, ash, a-man, mansers, asherman). but pants has stuck and it is just too hilarious to say pants and have him turn around and look at you!