фраер bedeutet auf Englisch

dupe [dupes]▼(deceived person)
noun
[UK: djuːp] [US: ˈduːp]

mug [mugs]▼((colloquial) a person who is easily fooled)
noun
[UK: mʌɡ] [US: ˈməɡ]

sucker [suckers]▼(one who is easily fooled)
noun
[UK: ˈsʌkə(r)] [US: ˈsʌkər]