3 examples of drop-in in sentences

"I dare you to walk downstairs and say, 'We-just-dropped-in-to-call-on-Miss-Champe'!"

An old gambler, whose life had been spent listening to the rattle of the drop-in-bound-out little roulette ball, was told by a fellow victim, as his last dollar went to the relentless tiger's maw, that the keeper's foot was upon an electric button which enabled him to make the ball drop where his stake was not.

" Flip's only response was to walk on toward the cabin, whence, with a vague complimentary suggestion of "drop-in' in to pass the time o' day" with her father, the Postmaster meekly followed.

3 examples of  drop-in  in sentences