Unexplained bad or stupid actions or decisions that appear to be caused by the bad influence of a friend or friends.
OMG! Did you hear Josh broke up with Katie?
What! They were the perfect couple. Josh must've been "frienfluenced" by those idiots he hangs out with.

The last thing Dylan remembered was being "friendfluenced" into drinking an entire handle at the party, so he had no idea how he ended up in a ditch when he woke up the next morning.
by MeYou92 January 26, 2017
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