When it has passed the time of your normal bowel movement.
After I ate that block of 10 Year Old Cheddar cheese from the Amish dairy in Wisconsin I got overdue doo doo for the whole drive home.
To apply lipstick to your butt hole and give someone a kiss with it usually while they are passed out.
"What girl was kissing my neck last night?" None! You passed out and we doo doo smooched you!
Jar Jar binks : Disa poo poo doo doo
HA FUNNY