How would you say this in Thai?
You're a skanky hag and you can't sing worth a shit.
You're well past your sell by date.
Those shorts you're wearing emphasise you grapefruit skinned thighs to perfection.
Your husband is a fool. He cannot play keyboards. He just can't.
Your sound system is archaic.
The only musician in your little ensemble is the drum machine.
The base of which scares my dog, shakes the foundations of my house and makes me air sick.
Whatever the idiot wife of the aged Japanese gentleman is paying you for your performance is 100% too much.
Fuck off.
Any loose translation will suffice.
Just keep to the general theme of the message.
Many thanks.