Vulgar, indecent, or coarse; lacking refinement. Often used to describe speech, manners, or taste.
あの映画のギャグは下品で、あまり好きではない。
The jokes in that movie are vulgar; I don't really like them.
人の前で大声で食べるのは下品だと注意された。
I was told it's rude/vulgar to eat loudly in front of others.
下品な言葉遣いは、職場では控えたほうがいい。
You should avoid vulgar language at work.