Stu­dent #1: Mr S., you have a big we­nis.
Teacher: What!?
Stu­dent #1: “We­nis” is the ex­tra skin at the back of your el­bow.
(teacher grabs fore­arm)
Stu­dent #2: No, straight­en your arm and grab the ex­tra skin. If you pinch your we­nis re­al­ly hard it does­n’t hurt! Try it, pinch your we­nis, Mr S.

–Bronx Sci­ence

Over­heard by: LSB