it's oral sex. the circular part of each numeral is the head and the tail is the body. this sort of oral sex is requited, with both people giving attention to the other person's genitalia.
Guy 1: "I 69'd last night with Jessica and it was awesome!!"
Guy 2: "Nice one."
The number that comes after 68 and before 70, not a sex position you perverted idiots.
Teacher: What is 60+9?
Student: 69
Perverted Idiot: OOOOOOH, BILLY'S TALKING ABOUT SEX!!!
Everybody else: Shut up Timmy Turner
nice.
Jim: “I took route 69 to get to the office today”
Gary: “nice.”
THIS IS THE BEST NUMBER TO EVER BE INVENTED LITEARRLY WHEN YOU ARE THIS OLD YOU UNLOCK AN ACHIEVEMENT "LEVEL 69! ACLOMPISHED!
ME:69 69 69 69 69 696 696 6969696969696996969
FRIEND 69699696969699696699699696969696969
FRIEND 2: 69999999999969696969696996969696969
The number that comes before 70
What number comes before 70?
69 baby