Boring Fun 

When you want to have a good time without exerting yourself at all; like playing kahoot vs. going to a rave.

God, my trip to NOLA was exhausting, I miss my roommate and I need to have some boring fun.

Boring Fun by WormAudience October 21, 2019

Bring Your Own Fun 

It means BYOB but fun is substituted for booze. This is done because alcohol often starts the fun. The lone Sober person at a party does not usually have any fun.
Fun is also substituted as a code word so that minors don't have to worry about adults figuring out what is going to go on at a party.
The fact that it sounds nerdy and innocent makes it ironic.

Bring your own fun to the party saturday.
Should have brought some fun.

Bring Your Own Fun by Louis Richards January 2, 2008

Funny Boning 

The act of putting your arm all the way to your elbow...or more specifically your funny bone..... inside any Orifice that will take an arm that far. For example..... anal funny boning is different then vaginal funny boning which is different then oral funny boning.

Guy 1: tell me why you got rid of your boxing speed bag, again?

Guy 2: Now that my wife can take my funny boning her vagina and butt hole at the same time.... my arms are too tired for any thing else

Funny Boning by LemmeF1ndOut October 7, 2021

Funny Boning 

An orgy in a circus ring with elephants mounting clowns and the ring master.

Person 1: Lets have a funny boning session!
Person 2: Sounds good.
Crowd: Wooo funny boning!
Elephant: ohhhh right!
Clown: Ouch!

Funny Boning by Karl, Matt and Fran January 8, 2009

Funny boning 

To penetrate a lover or casual whore in either the vagina or anus with your elbow.

Knock-knock, who's there? My mate Dave! he has come round for a funny boning!

Funny boning by Gambo1983 April 24, 2015