Jackie in Wausau, Wisconsin, says her family used an odd word whenever someone took a sip and choked. She’s not seen it in print but suspects it’d be spelled something like furschluk. The family’s word is likely adapted from German verschlucken...
If you complain that something went down your Sunday throat you mean that it went into your windpipe. Saying that something goes down your Sunday throat may derive from the fact that just as Sunday is a special day of the week in some religions...