The Toast Derivation
Now Leonard and Priya are dating and since she lives with Raj, Leonard and Howard decide to have dinner there instead of the normal venue which disturbs Sheldon who prefers their place. Sheldon leaves and stops by the Cheesecake Factory where Penny tells him he has to accept that the gang will be hanging out at Raj’s place more often. Amy tells him that Leonard is the nucleus of their social group and not Sheldon. As a result, he sets up a new group consisting of Kripke, Stuart, Zack and LeVar Burton (whom he tweeted) with him as the nucleus. Sheldon’s plans are dismissed by the others in favor of Zack’s dating stories and getting drunk and singing karaoke. Naturally, Sheldon does not like that very much, so he decides to go back to his old friends, who, in the meantime, realized that they actually missed Sheldon. In the end, LeVar Burton finally does show up at Sheldon’s place, but when he sees Kripke, Stuart and Zack singing karaoke together, he leaves immediately, stating “I am so done with Twitter”. Meanwhile, Bernadette and Amy want to take Penny out dancing to get her mind off of Leonard and Priya. As she changes clothes, she tells the girls that it is the first time in her life she is satisfied with being single and does not want to have sex with a random guy to make up for it, however when Amy finds the snowflake that Leonard gave to her after his expedition to the North Pole (see The Electric Can Opener Fluctuation), she changes her mind as her feelings for Leonard come back to the surface again.
Title reference: The group reminiscing about Sheldon explaining the origin of making a toast to them.