Having a Deployment Pal occurs when, a person get deployed due to miltary service. While he/she is away, a certain non-close friend will talk to them throughout the deployment, and will make plans and what not. When the person gets home from his/her deployment. Their pal has no intentions of fullfilling said plans.
Mark: Hey Jenny I'm home from iraq! Finally! Now lets go and do all that cool shit we planned!
Jenny: Mark i cant tonight i'm busy.
Mark: But i thought you said you were excited for me to come home, and wanted to hang out and shit? What are you busy with?
Jenny: I cant Mark, I'm just to busy
Mark: What a Deployment Pal bitch!