Flease is a slur used to describe Greeks in a derogatory way. Flap Grease. Since greeks work in the diners all of their lives, their uncircumcised penis build up grease underneath the flap. hence the name Flease
The word Flease is a racial slur that has been used historically to degrade and dehumanize greeks. The word is still used by some people for this purpose, and it is seen as offensive and hurtful to greeks. If you are unsure about whether or not it is appropriate to use the word Flease, it is best to err on the side of caution and avoid using it in any situation.