What is Duco?
1.
you and your partner's sexual fantasy combined into some hardcore stiff cock riding action all freakin day
Lucas gave me duco
2.
Playing runescape throughout the early morning hours after having consumed a large amount of alcohol.
"holy shit man i totally pulled a Duco last night and scaped till 7am"
See
3.
to defaecate
Last night Rachel O was feeling especially wild so she decided to duco on her boyfriend's chest.
See