[ars]

I googled ^D and didn't find any other meaning other than ctrl-D?

Some places said a D is short for Dick, but I don't see why that would be especially offensive to abuse victims because it seems to be used in a flirtatious way, not an abusive way.

[animal_spirits]

To give context, it's a reference to "getting the D" or "giving the D" which is slang for getting/giving someone 'dick' which is inappropriate considering this is a post about terminals.