This is my left front turn signal. For some reason this plug refuses to come out. It rotates about 5-10 degrees but that's it. Pulls out somewhat on one side but the other is stuck. I feel I would break it before it came free.

I can live without one front blinker but I thought I'd ask if it's possible some dummy jammed the wrong bulb socket in there (not sure if that's possible, just a thought.) At some point I'll grab a socket at a yard before attempting to pry this one out.

What model car?

It's an '83 300D (Sorry. Not sure why it does not show up in my profile thing.)

Push the socket in and turn. Should release and pull out to give access to the bulb.

oh, I know how it's supposed to open. This thing is odd b/c it's jammed. Push/pull rotate 5-10 degrees back/forth, do whatever you want, it's somehow stuck. That's why I was curious if the socket might look wrong and might have been jammed in there. Unlikely, but never know.

..it was as I suspected. The left turn signal body is different from the right. It has a different female socket. Someone chiseled out a little square for the stock bulb socket to insert, however did a sub-par job and it needed to be pried out. File this away in the "nobody cares" folder.