filthily

adverb
1
in a way that is very dirty or unpleasant
به طور کثیف, به طور ناخوشایند, کثیفانه, به طرزی ناپاک
2
in a way that is very rude and offensive and usually connected with sex
به طرز هرزه, به طور بی‌شرمانه