Wiktionary
vb. (context idiomatic English) To open out into a bell shape.
Usage examples of "bell out".
They sought Bell out in the pavilion he'd run up when he couldn't find a farmhouse as night fell.
This contract for ties to the Mexican Central is juicy enough, and the saving in transportation will more than pay the cost of rooting Bell out of there.
I'm afraid we're not going to have a second to lose-if we don't want Bell out there to die of impatience from waiting for us!
But nobody could drag Bell out of the room where all the baby mousebeavers were kept.
Wordlessly the three presidents followed Reginald Bell out of the room.
Tim Trimm was playing a cornet, holding its bell out the front door of the pavilion while he kept his costumed self behind the canvas and invisible to passersby.
When you opened the door a bell tinkled, but just once, high and clear and small in the neat obscurity above the door, as though it were gauged and tempered to make that single clear small sound so as not to wear the bell out nor to require the expenditure of too much silence in restoring it when the door opened upon the recent warm scent of baking.
I suppose you could make a bell out of it if you could only fabricate it.
The mother-in-law would have thrown Annie-Bell out on the street, but the boy pleaded for her, and the Minister, praying for guidance, found himself opening the Bible at the parable of the woman taken in adultery and meditated well upon it.