the phenomenon wherein one seems absorb the altered states of one's companions, and begins to display the behaviours typical of the chemical in question.
"hey, you're talking at a million miles an hour and dancing to the beat of a dripping tap... but you're the only one here who hasn't taken anything!"
"hmmmm... must be chempathy. HAVE A GLOWSTICK!"
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)