Tungmiyana can have multiple definitions depending on the tone used -
If angry "Tungmiyana" translates to "go f**k yourself"
If happy "Tungmiyana" translates to "Jump off"
"Bhench" is short for Bhenchod - a gujerati term for "One who fu*ks his sister"
Ilan: I'm not cleaning the dishes
Naty: Tungmiyana Bhench, yes you are
Ilan: Your a Bhenchod