The word "troughful" is not a commonly used term in English, but it can be spelled as /trɔːf-fʊl/. The IPA phonetic transcription of this word reveals that it is composed of two parts: "trough" and "ful". "Trough" refers to a long, narrow container for holding food or water for animals, while "ful" means "full of". Therefore, "troughful" means "full of trough", which doesn't make much sense. It is possible that this spelling is a mistake, and the intended word might have been "troughfuls".