Crossword clues for Bump up against 4 letters:BUMPSmall salary increaseBUMPPhrenologist's concern.BUMPPlane-ride annoyanceBUMPHighway warning signBUMPCollide withBUMPLog featureBUMPMinor impactBUMPMotoring hazard.BUMPLight collision.BUMPThank-you-ma'amBUMPParking-lot mishapBUMPSpeed reducerBUMPCollide, with "into"BUMPSpeed deterrentBUMPTraffic slowerBUMPCar slowerBUMPPush slightlyBUMPDislodge, so to speakBUMPTwo-fisted greetingBUMPRoad warning signBUMPUnseatBUMPHit against.BUMPJolt.BUMPRaise, in pokerBUMP___ into (encounter).BUMPCause for an apologyBUMPDemote: Colloq.BUMPCompete in a demolition derbyBUMPSpeed ___ (traffic-calming device)BUMPPhrenologist's interestBUMPPreempt, as on a talk showBUMPRoad bulgeBUMPSpeed __BUMPKick off the flightBUMPSign suggesting slowingBUMPJostleBUMPResult of bonking one's headBUMPMinor collisionBUMPIncreaseBUMPDislodgeBUMPRoad flawBUMPStrike slightlyBUMPMinor accidentBUMPRoad imperfectionBUMPKnock againstBUMPUptickBUMPDisplaceBUMPPromote or demoteBUMPRoad sign.BUMPCollide