1. sack up make as a net profit
  2. suck up ingratiate oneself to; often with insincere behavior
  3. soak up take in, also metaphorically
  4. scaup diving ducks of North America having a bluish-grey bill
  5. scup porgy of southern Atlantic coastal waters of North America
  6. psych up get excited or stimulated
  7. screwup the complete mismanagement or mishandling of a situation
  8. sickbay a room for the treatment of the sick or injured
  9. stack up arrange into piles or stacks
  10. sackbut a medieval musical instrument resembling a trombone
  11. slack up make less active or fast
  12. screw up make a mess of, destroy or ruin
  13. sick pay wages paid to an employee who is on sick leave
  14. back up move backwards from a certain position
  15. backup the act of providing approval and support
  16. stuck-up (used colloquially) overly conceited or arrogant
  17. shack up share living quarters
  18. stick up defend against attack or criticism
  19. rack up gain points in a game
  20. jack up lift with a special device