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1 definition by Captain America Ranger

 
1.
EIB
Everybody In Battalion: A female groupie of the 75th Ranger Regiment, also known as a Rangerette, whom participates in sexual acts with at least a hundred Rangers from one of the Ranger Battalions. EIB is a pun that is based on an actual award called the "Expert Infantryman Badge."
1)Amber, a Rangerette, quickly earned her "EIB" title when she went on a three month sex spree with a hundred Army Rangers.
dari Captain America Ranger Senin, 15 Oktober 2012