also: パチカス
noun
pachinko addict; gambling addict
Derogatory slang blending パチンコ (pachinko) and カス (dregs, scum). Used to insult someone who is hopelessly addicted to pachinko or gambling in general.
あのパチンカス、今日も朝からパチンコ屋にいるよ。
That pachinko addict is at the pachinko parlor again from this morning.
給料を全部パチンコに使うなんて、ただのパチンカスだ。
Spending your entire salary on pachinko—you're just a gambling addict.