A goodnight alpaca is a night ritual between men. It starts with all of the friends ejaculating into one friends mouth (including himself). Then they all sit in a circle as the friend with the sperm solution kisses his friend to the left giving some of the sperm solution to him. Then that friend kisses the next one and so on until everyone has some in their mouth. The final action is everyone performing a spit take on eachother before they go to sleep.
by BoinkTownUSA August 20, 2019
Get the Goodnight Alpacamug. When you give yourself head and cum in your mouth. Then you spit the cum into a girl's vagina thus inseminating the girl.
by Frank420 January 28, 2010
Get the alpaca inseminationmug. A badass motherfucker that isn't afraid to rid the world of autism, one Down syndrome infected baby at a time. An Alpaca Guy will fight battles and kill without regret. In other words, an Alpaca Guy is a badass motherfuckin sociopath.
by Alpaca_Guy July 3, 2014
Get the Alpaca Guymug. 
When someone who shits on your bed just well and truly embarrassed themselves by going on like an awkward bitch.
by johnnyswife May 5, 2022
Get the alpaca daymug. 