(Noun) A well dude is a person who is constantly making excuses for why they can’t, or shouldn’t perform certain actions.
(Exclamation) The prolonged sound made by a person who, when in the presence of a well dude, hears them say “well dude.”
“Do you want to go to this show on Thursday?”
“Well dude, I just can’t because I have to work on Friday and it takes too long to get to the venue and the tickets are too expensive and I have homework anyway.”