<p>^ They were joking around with a friend and made up their own extracurricular… something along the lines of “I’ve been clam-farting for 17 years, very dedicated,” and they forgot to delete it from their application. You can search it if you want, it’s a good read 
OP, I honestly wouldn’t worry about it. Like another person said… it might actually make your application stand out (in a good way).</p>