1. Usually means a dick or vagina, usually related too masturbation or touching that area.
2. It usually consists of a fuckboy touching themselves.
Memefagget2000: Get out ye fucking coocaloo fuckboy
Fuckboy3000: Shut ye lizard as up mate I will fuck ye
Memefagget2000: You can cum in your own face ye fuckin idiotwankstaindickwally Fuckboy3000: Oops, i cummed on myself *drinks bleach*
Noun: a person or thing that happens that is silly and funny or weird. Someone who does something silly or funny or acts strange is a cookaroo!
Noun: a giant bird that looks like a flamingo and migrates from Indiana to Southern California when it's a mature adult.
~I paid for my parking and walked to where I parked. I didn't see my car anywhere. Wait a minute! I'm in the wrong parking structure! I am such a cookaroo!
~This gal knocked on my door. She was clearly drunk and high and wanted to pray for me. What a cookaroo!