[1] : WordNet (r) 2.0

drag on
     v 1: last unnecessarily long syn: drag out
     2: proceed for an extended period of time; "the speech dragged
        on for two hours" syn: drag, drag out
see also:
drag out drag 

[2] : Moby Thesaurus II by Grady Ward, 1.0

47 moby thesaurus words for "drag on":
   abide, be infinitely repetitive, be tedious, bide, carry on,
   cease not, continue, continue the same, crawl, creep, drag,
   drag along, drone, endure, fatigue, glut, go along, go on,
   go on forever, hold on, hold steady, hum, irk, jade, jog on,
   keep going, keep on, linger, linger on, never cease, pall, persist,
   prevail, remain, run on, run through, satiate, slog on, stagger on,
   stay, stay on, tarry, tire, tire to death, wear, wear on, weary

Drag >> D Words
Drag, definition of term: Drag
drag_pag1.html

Drag Out >> D Words
Drag Out, definition of term: Drag Out
drag+out_pag1.html

Drag Line >> D Words
Drag Line, definition of term: Drag Line
drag+line_pag1.html

Drag Down >> D Words
Drag Down, definition of term: Drag Down
drag+down_pag1.html

Drag Coefficien >> D Words
Drag Coefficien, definition of term: Drag Coefficien
drag+coefficien_pag1.html

Drag In >> D Words
Drag In, definition of term: Drag In
drag+in_pag1.html