Another one of the silliest sentences here!
Why would a horse or a person be referred to as trash? We do not refer to people or domesyic animals that way in English.
People (in the English language, to boot) if they're being extremely rude sometimes refer to people or animals as trash. :(
Somebody must have bet on (or bought) the wrong horse.
Mwuahahahaa.....keyeknya semuanya sampah nih...
Ini siapa sih yang bikin kalimatnya