noun
smoking addict; heavy smoker
Derogatory slang term for someone who smokes a lot, often used in online or casual speech. Combines ヤニ (tar/nicotine) and カス (scum/waste).
See also: ヤニ
あのヤニカス、またタバコ吸ってるよ。
That smoking addict is at it again with the cigarettes.
ヤニカスは周りに迷惑をかける。
Heavy smokers are a nuisance to those around them.