" let on (about) "

 [ "let's fuck about it" ]

1: When instead of talking, u decide to fuck about the issue ur having with the other(s) person(people)

  * e.g.,  ... "I don't understand your point of view, so maybe let's fuck about it instead" 

 [ "Let's talk about airplanes" ]

1: A phrase used to break up a boring or uncomfortable conversation.

  * e.g.,  ... "And then blah blah blah blah blah blah" 

 [ "Let's talk about airplanes" ]

2: Often used by a third member of a group to disrupt the useless conversation of the others.

  * e.g.,  ... "Let's talk about airplanes" 

 [ "Let's make out about it" ]

1: a powerful response meaning to discuss something by making out instead of talking.

  * e.g.,  ... girl: "My Dad lost his job, my Mom is leaving him, and my boyfriend just dumped me!"  

 [ "let me tell you about homestuck" ]

1: "Let me tell you about homestuck" is a joke about homestuck fans trying to tell normal people about homestuck.

  * e.g.,  ... Me :' Hey, let me tell you about homestuck' 

 [ "Let me think about that and forget it quickly" ]

1: A phrase you say to someone when you don't want to consider their suggestion seriously.

  * e.g.,  ... Can I guy your gaming chair for $5? Let me think about that and forget it quickly. 

 [ "Let me think about that and forget it quickly" ]

2: A phrase you say to someone when they have an egregious suggestion or opinion.

 [ "Let’s talk about it later" ]

1: The phrase you say when you really don’t want to talk about something, and you never actually talk about it later. You just use it as an excuse.

  * e.g.,  ... Dad: Hey, what is this I saw on your search history!?