Paul Blay wrote:

> Is "ton" a Japanese _word_ though?  My vote would be for 'no'.

No, it's a Japanese word to express a unit of weight;-)

Anyhow, I have never heared indipendent character 豚 is read as とん. と
ん seems to be always used with attached character(s) such as 豚汁(とん
じる), 豚骨(とんこつ), or 豚カツ(とんかつ). I bet your Japanese
friend will never say 「おい、とん食いにいこうぜ」... Hey, it's not a
bad phrase indeed.

萩原@グリフィス大学