I will start: sometimes when we're playing around or even during sex, my BF will say "put your nipple in my eye!" And we just laugh hysterically. Not sure when that became a regular joke...

Got this post idea from a reddit thread my BF sent me! Haha my fav weird thing someone posted was some dude saying he and his gf "hamster". She acts like a hamster and the bed is her cage. She crawls around and makes nests out of the blankets and pillows. And her BF stands at the edge of the bed and his penis is the water thing and when she's thirsty, she crawls over to it and drinks... Hahahahahaha