shopping headache

today's shopping took place at the veggie and fruit sections of the victoria market.
it was SUCH a pain. how should i know what a good apple looks like? or a good quality peach? and how do you choose which eggs to buy? i left that all t lishan and zelia. my turn will come when it comes.

me: chu phu.. what's te bu??
chups to lishan: eh what's tebu?
lishan: dunno..
chups to me:i dunno..
me: eh chu phu! you very DUMB LEH!!!
lishan to me: eh, so what's te bu?
me: i dunno!
lishan: cheyyyy.. then you also very dumb wad??

someone please tell me what that is!!!