What does "プラついてる" mean, and how to research similar weird lines?


For context, the three main characters are visiting a museum and being sneaky
by doing it while their parents are out. I know the gist of the line is "We're
the heretics for taking advantage of our parents being out on work and
[プラついてる] since noon like this?" In my research I keep finding references to
plastic, which doesn't seem right, and I don't know of any good sources of
slang or common sayings.

> 親が仕事で外出してるのをいいことに、こうして昼間からプラついてる私たちの方が異端ってわけか。




プラつく is one-time alternative of the verb ぶらつく, which is also contained in
dictionaries. That in your sentence falls on the second usage of [this
entry](https://dictionary.goo.ne.jp/word/%E3%81%B6%E3%82%89%E3%81%A4%E3%81%8F/).

Since ぶらつく is an onomatopoeia-related word (cf. ぶらぶら), such a change in sound
is relatively easy to be accepted/understood, even though highly rhetorical.




プラつく is one-time alternative of the verb ぶらつく, which is also contained in
dictionaries. That in your sentence falls on the second usage of [this
entry](https://dictionary.goo.ne.jp/word/%E3%81%B6%E3%82%89%E3%81%A4%E3%81%8F/).

Since ぶらつく is an onomatopoeia-related word (cf. ぶらぶら), such a change in sound
is relatively easy to be accepted/understood, even though highly rhetorical.

