Bombshit is the marriage of the the terms "the bomb" and "the shit" only to emphasize the "bombness" and the "shitness" of oneself. This term should be used when the titles "the bomb" and "the shit" are not suffiecent because they do not capture the true quality of the person in the situation. It should be only used sparingly in order to preserve it's effect.
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)