of course there is a sign for it
Jan. 13th, 2012 06:06 pmThere's presumably a sign for everything, but nestled there among the other L words in the ASL video dictionary is lactose intolerant, which looks like milking a cow and then rejecting the results
http://www.aslpro.com/cgi-bin/aslpro/aslpro.cgi
http://www.aslpro.com/cgi-bin/aslpro/aslpro.cgi