The absolute greatest, most wonderful, or just plain amazing. Example: That new Sting album is totally foput. OR www.pseudodictionary.com is foput, especially compared to a few other (ahem, www.dictionaryofslang.co.uk) so called slang dictionaries.
FOPUT
Meaning of FOPUT in English
Slang English vocab. Английский сленговый словарь. 2012