Dialogue translation

[JforA]

Okay long story short, I need help translating some dialouge into Na'vi.

"Shove it up your posterior, la'ang!" (The speaker is irate and is mouthing off to their captor.)

"keep mouthing off, and it's going down your throat, kid." (The speaker is a human and does not know Na'vi very well.)

If anyone wants to take a crack at that, I'd be infinitely grateful.

[Toliman]

"Shove it up your posterior, la'ang!" (The speaker is irate and is mouthing off to their captor.)

Maybe I have a idea just for this one line, if I understand well
Tsa'uri wìntxu pizayur, la'ang!

[Blue Elf]

If I understand well, first line is what some person says to captor after being caught/kidnapped and second line is what captor answers, both lines held in rough style. If this assumption is ok, then I'd try:

1: Yem tsat nemfa ngey txìm, ma la'ang! (Put that in your ass, you stinking s**t!)
2: Plltxe tsafya nìmun ulte fì'u kayä kxamlä ngeyä flew, ma 'evi. (Speak that way again and this will go through your throat, kid)
or
Kxar tstu si fu ngeyä flew ultxa si hu oey tstal, ma 'evi. (Shut up or your throat meet my knife, kid).

[Toliman]

Oh yeah, right. Very nice ideas

[JforA]

"Shove it up your posterior, la'ang!" (The speaker is irate and is mouthing off to their captor.)

Maybe I have a idea just for this one line, if I understand well
Tsa'uri wìntxu pizayur, la'ang!

If I understand well, first line is what some person says to captor after being caught/kidnapped and second line is what captor answers, both lines held in rough style. If this assumption is ok, then I'd try:

1: Yem tsat nemfa ngey txìm, ma la'ang! (Put that in your ass, you stinking s***!)
2: Plltxe tsafya nìmun ulte fì'u kayä kxamlä ngeyä flew, ma 'evi. (Speak that way again and this will go through your throat, kid)
or
Kxar tstu si fu ngeyä flew ultxa si hu oey tstal, ma 'evi. (Shut up or your throat meet my knife, kid).

Wonderful! Iryao. My thanks to you both. 

[Toliman]

Kea tìkin