This is a piece of British slang that only ever appears inside one fixed phrase: 'on your tod', meaning on your own, by yourself, with nobody else there. You change the word in the middle to match the person — on my tod, on his tod, on her tod, on their tod.

This這是 is a piece of British slang一個英式俚語 that only ever appears inside one fixed phrase只會出現在一個固定片語裡：'on your tod''on your tod', meaning on your own, by yourself, with nobody else there意思是自己一個人，沒有其他人在。You change the word in the middle to match the person中間的字要換成配合的人稱——on my tod, on his tod, on her tod, on their todon my tod、on his tod、on her tod、on their tod。

It comes from rhyming slang: 'on your Tod Sloan' rhymes with 'own', and Tod Sloan was a famous American jockey around 1900. Speakers shortened it to just 'tod', and now almost nobody who uses it remembers the jockey at all.

It它 comes from rhyming slang源自押韻俚語：'on your Tod Sloan''on your Tod Sloan' rhymes with 'own'跟'own'押韻，and而 Tod SloanTod Sloan was a famous American jockey around 1900是1900年前後一位有名的美國騎師。Speakers shortened it to just 'tod'講的人把它簡化成'tod'，and而 now almost nobody who uses it remembers the jockey at all現在用這個字的人幾乎沒有人記得那個騎師了。

It carries a small feeling of being left alone — 'I ended up on my tod all evening' sounds a bit sorry for itself, which is part of why people like it.

It它 carries a small feeling of being left alone帶著一點被留下、一個人的感覺——'I ended up on my tod all evening'「I ended up on my tod all evening」這句話 sounds a bit sorry for itself聽起來有點自憐，which is part of why people like it這也是大家喜歡用它的部分原因。

It is informal, quite British, and sounds older; you will hear it from London speakers and in British TV, but rarely from young people, and almost never in the US. Outside this phrase, 'tod' by itself has no everyday meaning in modern English, so do not try to use it alone.

It它 is是 informal, quite British, and sounds older口語、很英式，而且聽起來比較老派；you will hear it from London speakers and in British TV你會從倫敦人口中或英國電視上聽到，but rarely from young people但年輕人很少用，and而且 almost never in the US在美國幾乎不會聽到。Outside this phrase在這個片語之外，'tod' by itself'tod'單獨使用 has no everyday meaning in modern English在現代英文裡沒有日常意義，so所以 do not try to use it alone不要試著單獨使用它。