This episode is tied as the most highly rated episode of the series on IMDb.
The Texas-based independent woman wrestler Delilah Doom uses "Let's Go to the Mall" as her entrance music.
In the episode "Slap Bet" you meet "Robin Sparkles" (Canadian Teen Pop Star) where you find out by Robin that "Let's Go To The Mall" started as an innocent modeling job but in real life Cobie Smulders started her fame as a model where she got noticed by an agent and started her life as an actress.
Marshall actually gets a total of 10 slaps. The first five were in error and were later taken away by the "Slap Bet Commissioner." He's awarded another 5 slaps when he's slapped in error by Barney; Barney thought he had proved his original premise. The "Slap Bet Commissioner" took Barney's 5 away and gave Marshall a couple of options to use. But all total, Marshall uses a total of three slaps: two in the bar from the first 5, and one in his apartment from his second 5.
In the song, Let's Go To The Mall, Robin makes a reference to former Canadian Prime Minister Brian Mulroney. In real life, he ended up passing away in 2024, the same year of Tracy's death.