accidentally on purpose

US /ˌæksɪˈdɛntəli ɒn ˈpɜrpəs/
UK /ˌæksɪˈdɛntəli ɒn ˈpɜrpəs/
"accidentally on purpose" picture
1.

doing something intentionally but making it seem like an accident

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She accidentally on purpose spilled coffee on his new shirt.
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He left the door unlocked accidentally on purpose, hoping she would come in.
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accidentalaccidentallypurposeserve a purposeat cross purposesall-purpose flourfor all intents and purposes