1.) What a woman or emo chick starts to feel like, when she realizes that she is being used simply to perform blow jobs to who she thinks is her friend, but really is not her friend.
2.) The mouth of the woman being used merely for a blow job.
When James did not want her to hang out with him and his friends after his political meeting and only wanted her company when he did not have another blow job lined up, she realized that she was simply a glory hole to him, not a person with her own feelings, and he did not really want her friendship, only her mouth.