The act of staring into the light of ones pda while in a place where one should otherwise be socializing, mingling, or engaging in conversation.
I found it quite offensive that my children were mothing while out to dinner with their grand parents last week.
creating holes in perfectly acceptable logic
Ursula: music without bass is like eating without anything this is why we're friends.
Gabi: unless its acoustic music then it's ok
Ursula:there you go mothing it up again!