A "Luban" is that complete
lunatic that runs into a place, yells and demands something without saying anything relevant except for a massive shockwave of made-up
words in a high pitch - and
everyone in that place knows exactly what this beautiful idiot wants - instantly.
"
SQ@%×177HAVVA" - Look son, a wild Luban! He wants to buy a pack of
cigarettes.
"Allo blurrrghgg" - I'm sorry sir, each household are only allowed to buy one pack of toilet
paper per visit.