Answer: effs

AnswerCrossword Clue
EFFS... off (gets lost)
EFFSGee antecedents
EFFSOffenbach duo
EFFSGee preceders
EFFSTwo of fifty?
EFFSRotten grades
EFFSThey can make a suer suffer
EFFSFlunking marks
EFFSSign of poor schoolwork
EFFSBad grades
EFFSPair of ruffians?
EFFSPair of buffalo?
EFFSLetters
EFFSSmall apartments, in ads
EFFSSmall apts.
EFFSTwo from fifty?
EFFSLousy grades
EFFSForty percent of fifty?
EFFSLetters of failure
EFFS1-room units
EFFSReport card blots
EFFSSymbols of failure
EFFSLots of fluff?
effsEFF, euphemism for fuck
EFFSPair of duffers?
EFFSFlunking grades
EFFSFailing marks
EFFSReport-card blemishes
EFFSFluffy trio?
EFFSReasons for makeup
EFFSReport card ruination
EFFSThey keep you from passing
EFFSReasons for certain repeats
EFFSFailing grades
EFFS40% of fifty?
EFFSPair of officers?
EFFSDismal grades
EFFSLetters denoting bad grades
EFFSTwo out of fifty?
EFFSReport card woes