\I"rish Ba"by Rat"tle\;(proper noun): A home made child's toy, made from an empty beer bottle and a bent bottle cap that is placed inside the bottle producing the desired rattle effect.
I was baby sitting my brother's infant son, and I didn't have any toys for him to play with so I made him an Irish Baby Rattle from an empty beer bottle.
by 00Mancandy March 20, 2011