uppers

Noun

• the higher of two berths
• piece of leather or synthetic material that forms the part of a shoe or boot above the sole that encases the foot
  • "Uppers come in many styles"
• a central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression
• plural of upper
• The parts of a pair of shoes that do not normally contact the ground.

Examples

• His shoes were so worn that he was walking on his uppers.

Synonyms

amphetamine, pep pill, speed, upper, upper berth