It's a frickin function...

To mis-quote Dr Evil: it's a frickin function ... Working with 2^nd/3^rd year students on computing-related degrees who don't know what a function is, what arguments do and why you don't have to call function f(x) with an argument named x is rather frustrating, to put it mildly. Especially after the lecture where I said if you don't know what a function is, revise before this week's lab class or come and talk to me ... IMO, a jolly good time to frickin Google it!