(n.) a day or one day; (slang) used as part of a prepositional phrase (一日都係) to blame someone (or something or 'a reason') for some negative things that have happened, all because of; owing to; thanks to (e.g. 一日都係你 means "It's all because of you" or "Thanks to you".)
有
jau6
also
again
七
cat1
seven
euphemism for 𨳍, prick
八十
baat3 sap6
eighty
斤
gan3
catty
weight equal to 0.5 kg
(Tw) weight equal to 0.6 kg
an axe
shrewdly
hundred (bucks)
Learn Stroke Order
See how to write "八十" with stroke-by-stroke animation