After the second party, Marshall said: "Alright, we threw two parties. Everybody had fun. Everybody wanged, everybody chunged". This is a reference to the 1986 song "Everybody Have Fun Tonight" by Wang Chung.
During the second party, Barney said: "Ah, you were so right about the roof. The roof! The roof is on fire!". This is a reference to the 1984 song "The Roof Is On Fire" by Rock Master Scott & the Dynamic Three.
This episode features two actors that star in the Marvel Cinematic Universe. Cobie Smulders (Robyn) plays Agent Maria Hill In 'Avengers'(2012), 'Avengers: Age of Ultron'(2015), 'Captain America: The Winter Soldier'(2014), 'Avengers: Infinity War'(2018) and 'Agents of S.H.I.E.L.D.'(2013-2015), while Jon Bernthal (Carlos) plays Frank Castle in 'Daredevil' (2016) and 'The Punisher'(2017).