I don't think it's a well-known term, but it could mean 'Thank you hun'?
Tah = Thanks
Tbh = To be honest
I hoe to hir tyh
If you mean slang as in internet slang, then it means "Certified Old Fart".
Slang is slang It's the s' "LANG " uage.
In old slang, milkshake mean butt.
It is slang for having sex.
Cool itself, unless you are using it to mean mildly cold, is a slang word. Just because it is old slang doesn't mean that it is not still slang.
Dough is a slang word for money.
he means what does being a sponge mean in slang
Tat is also slang for tattoo
''Dill'' means ''idiot'' as australian slang.
Potted is slang for very drunk.
BTM is a slang acronym for "Be There Moment."