"bucked" in the verb sense
1. buck
to strive with determination
"John is bucking for a promotion"
2. buck, go against
resist
"buck the trend"
3. tear, shoot, shoot down, charge, buck
move quickly and violently
"The car tore down the street"
"He came charging into my office"
4. buck, jerk, hitch
jump vertically, with legs stiff and back arched
"the yung filly bucked"
Source: WordNet® (An amazing lexical database of English)
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