from The American Heritage® Dictionary of the English Language, 4th Edition
- adv. Repeatedly within the same or closely related stocks: to breed pigs in-and-in.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An old game played with four dice, a double being referred to as "in" and two doubles as "in-and-in".
from the GNU version of the Collaborative International Dictionary of English
- n. An old game played with four dice. In signified a doublet, or two dice alike; in-and-in, either two doubles, or the four dice alike.
- Applied to breeding from a male and female of the same parentage. See under breeding.
from The Century Dictionary and Cyclopedia
- From animals of the same parentage; from animals closely related by blood: as, to breed in-and-in.
- With constant interaction of any kind.
- n. An old gambling game played by two or three persons with four dice, each person having a box.
Sorry, no etymologies found.