Kookaburra, can be confused with a species of bird that is native to Australia. It can also mean blow job, head job or felatio as the sounds of the kookaburra strongly resembles that of a woman vigorously performing felatio. .
An act of getting the cotton from your boxers/underwear tangled in the hair in your nether-region or the inside of your leg. It is almost impossible to untangle and unbearably painful to rip out.
I got a new pair of boxers today and the cotton came loose and now I've got a nastyamount of kookaburras.