1.(n.) Main character of a popular T.V. show in the 1980s with unbridled ingenuity and cunning.
2.(n.) 1980s T.V. show where in every episode the hero would use objects around him to escape dire situations or fix something up through physics, chemistry, or duct tape.
3.(v.) To repair or enhance something previously broken through use of everday objects.
1. "The name's MacGyver. Just, MacGyver."
2. MacGyver created makeshift grenades from some junk and chemicals he found in an aircraft garage in order to get rid of the gunmen holding people hostage inside a diner.
3. Tim's mouse had broken, so he popped it open and used some chewing gum to MacGyver it back together for a while.