At 4:50 Crane says "people try to put us down just because we get around". Molly asks "What?" to which Crane counters "Who". The first phase is from the song "My generation" by the Who.
This episode presents the true historical origin story for "Uncle Sam" as well as giving new meaning to "viral video".
The dictionary definition of the episode's title is a clever or cunning remark that makes someone look silly or be embarrassed.