The term that is transliterated as «Philistines» in English means «(from) the land of wanderers,» «(from the) land of strangers» (same as «Palestinian»). (Source: Cornwall / Smith 1997 )
It is translated in American Sign Language with a sign that signifies the helmet the Philistine warriors wore was decorated with feather-like objects. (Source: Ruth Anna Spooner, Ron Lawer)
«Philistines» in American Sign Language, source: Deaf Harbor