Wiktionary
adv. (context idiomatic English) Right at that moment in time.
Usage examples of "then and there".
And Oliver knelt before him when he had dight his own lord, and swore fealty to him then and there.
When either Lincoln or Herndon received a fee they divided the money then and there.
He then and there appointed me to be his own private workman, to assist him in his little paradise of a workshop, furnished with the models of improved machinery and engineering tools of which he has been the great originator.
And then and there I made a solemn vow with my Maker that if He would stand by you boys at Gettysburg I would stand by Him.
To the man actively happy, from whatever cause, evil simply cannot then and there be believed in.
Grimp scowled after him, half-minded to reach for the slingshot then and there and let go with a medium stone at the lower rear of the uniform.
He had simply fallen into the bed then and there, and for all practical purposes passed out on the spot.
Two days later, he had skeptically put the power of the restraints to a test, and had very nearly died then and there.
It was all Talaysen and the others could do to keep him from charging out then and there, and beating up a few of the Guild Bards in retaliation.