On the sly
adverb
Slyly, in an inconspicuous manner, so as not to be seen; secretly; stealthily.
Synonyms: clandestinely, furtively, on the Q.T.
on the sly
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Slyly, in an inconspicuous manner, so as not to be seen; secretly; stealthily.
Synonyms: clandestinely, furtively, on the Q.T.
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