"My graduating class had 18, anybody got me beat?"

The humor in the video comes from the unexpected and exaggerated response from the audience, creating a relatable and funny moment about the difference in class sizes between different educational institutions.

A speaker asks the audience how many people were in their graduating class, stating his was 18. The audience responds with "Like 500," leading to laughter and surprise from the speaker.

Under Armour (appears) - This is a brand of athletic apparel worn by the speaker. Removing it would not change what happens in the video. Northwestern University (appears) - This is the university the speaker is associated with, indicated by the logo on his sweatshirt. Removing it would not change what happens in the video.