Specifically, someone who supports the Trotskyist political view expressed in the newspaper Militant, or who engages in aggressive left-wing politics.
An entrenched or aggressive adherent to a particular cause, now especially a member of a particular ideological faction.
Fighting or disposed to fight; belligerent, warlike.
Aggressively supporting of a political or social cause; adamant, combative.
One who supports or advocates socialism.
Of, relating to, supporting, or advocating socialism.