It is to 'llowie what dowser is to dowee- anything bad can be 'llowie, but 'llow is a general exclamation concerning how much something sucks.
"Man, it's raining outside!"
"'llow that!"
or,
"Dude, did you get tickets for the gig?"
"No"
"'llloowww."
"'llow that!"
or,
"Dude, did you get tickets for the gig?"
"No"
"'llloowww."
by the frey April 10, 2007