This question is related, but not quite identical, to a previous one and to another similar one.
In a recent video, phonetician Geoff Lindsey claimed that the words "off" and "on" do not have weak forms; see his previous video on weak forms for some background.
I claim that this is wrong, and that in fact some speakers (including myself) do reduce "on" to something like [?n] or [?n] or just [n], with the vowel sound absent or barely perceptible. Here are some examples on YouTube (found via YouGlish), though you will likely need to reduce the playback speed to make it more obvious:
- "right on the table" (at 5:07)
- "guy on the phone" (at 42:20)
- "sat on the couch" (at 1:09:40)
- "out on the porch" (at 1:20)
- "on a pedestal" (at 20:18)
- "right on top of each other" (at 11:58)
I don't think it's a coincidence that Geoff Lindsey is British, and that all of these speakers are (as far as I can tell) speaking American English. Geoff Lindsey does mention that weak forms may differ among accents, though he doesn't mention any exceptions in his discussion of "off" and "on." Presumably this isn't universal; it's probably also limited to cases where "on" can't be confused with "in" or "and."
Am I hearing these examples correctly? Is this indeed evidence for a weak form on "on," contra Geoff Lindsey? Is weakening "on" more common or acceptable in American English than in British English?