creep on (someone or something)

creep on (someone or something)

slang To observe, investigate, or become overly familiar with someone or their personal matters in an intrusive or undesirable manner. I felt a little weird creeping on all his social media posts like that, but I wanted to know what he was like was before going on a date with him. Some guy in the corner has been creeping on us all night long. Let's go ask the bouncer to deal with him.
See also: creep, on
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
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