(n.) One who obstructs or hinders.

address after-dinner speech allocution be dilatory chalk talk cloture committee consideration constitute debate declamation decree deliberation diatribe division enact enact laws eulogy exhortation filibusterer filibustering filing first reading forensic forensic address formal speech frustrater funeral oration gain time get the floor hang hang back hang fire harangue have the floor hesitate hinderer hold off hortatory address impeder inaugural inaugural address introduction invective jeremiad kill legislate lobby through logroll logrolling make time marplot negativist obstructer obstructionist oration ordain outlast outspeak outtalk pass pep talk peroration philippic pigeonhole pitch play for time pocket prepared speech prepared text procrastinate public speech put in force put through railroad through reading recital recitation roll call roll logs sales talk salutatory salutatory address say screed second reading set speech speech speechification speeching stall stall for time stall off steamroller methods stooge around table tabling take the floor talk talk against time talk down talkathon temporize third reading thwarter tirade valediction valedictory valedictory address veto vote yield the floor