A chemical reaction is when two chemicals (reactants) form to make a new chemical substance. During the chemical reaction, the atoms are rearranged to form the aforementioned new chemical substance (products).
There are different types of chemical reactions, however, in this definition, I will not be explaining them.
Guy 3: Woah, did you see that chemical reaction?
Guy 1: Hell yeah I did!
Guy 2: I wonder if we could do it again?
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)