pigfender wrote:If it's not immediately known, would you get the meaning from the context? For example:
"Try to back now and I'll screw you to the wall, and use him as a rawlplug."
I don't get enough context from your contextual example to say whether I could figure it out; "I'll screw you to the wall, and use him as a rawlplug." I can't figure out the causal link between screwing "you" to the wall and "him" being used as a rawlplug, so all I have to go on is "use him as a rawlplug", which really only gives me information based on the the word "rawlplug", which has "plug" in it. So I'm back to just trying to figure out what the word "rawlplug" might mean, without contextual help.
If you said, "I'll screw you to the wall and make you watch me take take a core sample out of his skull and use it as a rawlplug for my boat!" then I'd guess that a scientist was making the threat to do (likely fatal) surgery on someone "you" care about using his/her field equipment, and use the cylindrical bone fragment as a plug a hole in the threatening person's houseboat. But I'm guessing that's pretty far afield from what you're going for.