Top Definition
A spontaneous event which is associated with wetness like a puppy licking your face. Could also be used to describe any kind of unexpected, yet warmly received, gesture. Can also be used sarcastically to describe either mishaps or actions which could result in a mishap like leaving a banana peel on the floor (e.g., "Bro, nice slapperdoodle in the kitchen! Clean that shit up.")
"Look at little Charlie playing with the puppy! Aw, he just got a slapperdoodle!"

"The slug left a bunch of slapperdoodles on the front porch."

"Just as the night was coming to an end, she pulled out some LSD from her purse. The universe was giving me slapperdoodle all day long!"
by drbone August 29, 2013
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