The errant bit of lint, hair, or fuzz that accidentally finds its way into your mouth, can be detected with the tongue, but can't seem to be removed with the fingers, at least not until you've had to talk funny and slobber all over yourself to find it. Example: Beulah was temporarily speechless, as her tongue was preoccupied with a fibrous evader floating somewhere near her molars.
FIBROUS EVADER
Meaning of FIBROUS EVADER in English
Slang English vocab. Английский сленговый словарь. 2012