Where Does the Expression Lollygag Come from?

You certainly didn't want to be known as a lollygagger at the beginning of the 20th century. Back then, lollygag was slang for "fooling around" (sexually, that is). That sense of lollygag was in use as long ago as 1868, and it probably originated as an alteration of the older (and more dawdlingly innocent) lallygag.

What does no Lollygag mean?

To lollygag is to be slow or idle or lazy. You might say to your dawdling friends, "Don't lollygag!

What's the difference between lollygagging and dilly dallying?

Lollygagging meant wasting time, lazing around with someone else, when there was work to do or duties to perform. Dilly dallying would indicate a trite waste of time while lolly gagging, a more old fashioned expression, was synonymous with elicit relationships and an inappropriate waste of time.