I'm guessing it's a reference to how Lancer's always end up switching Masters. I guess Gil was hoping he could become Enkidu's Master and instead Enkidu just jacked his stuff.
I think it was more along the lines of the lancer normally wearing a unitard, and Gil offering Enkidu some clothing, and Enkidu stealing his armor instead.
Lancer = tights!!!And Luck rank of EEh?Today I, the King, specially prepared for you....Woof.