One who is (1) solemn & serious or (2) one who is solemn & melancholic.
The word is a blend of solemn + (melan)choly and originally (late 1700s) meant "solemn & serious". In modern use, especially of or by emos, it's become more a synonym of "depressed".
Q: Victoria says she suffers from solemncholy. Do you think that's areal condition?
A: Victoria is an emo; for her solemncholy is a calling.
Fogey/fogy /fougi/ sl. (early 18C+, orig. Scot) old-fashioned, stuck-in-the mud.
Person with old fashioned ideas which he is unwilling to change: Come to the disco and stop being such an old fogey!
You think me an old fogeyand an old tory, his thoughtful voice said. I saw three generations since O’Connel’s time. I remember the famine. Do you know that the orange lodges agitated for repeal of the union twenty years before O’Connel did or before the prelates of your communion denounced him as a demagogue? You fenians forget some things. (James Joyce, Ulysses. Penguin Books,1992. p. 38)