Both Uses of

procrastinate
in
Ulysses, by James Joyce

Yes, beyond a shadow of a doubt he could with all the cards in his hand and he had a capital opening to make a name for himself and win a high place in the city's esteem where he could command a stiff figure and, booking ahead, give a grand concert for the patrons of the King street house, given a backerup, if one were forthcoming to kick him upstairs, so to speak, a big if, however, with some impetus of the goahead sort to obviate the inevitable procrastination which often tripped-up a too much fêted prince of good fellows.†
Chpt 16

It, with the preceding scene and with others unnarrated but existent by implication, to which add essays on various subjects or moral apothegms (e.g. My Favourite Hero or Procrastination is the Thief of Time) composed during schoolyears, seemed to him to contain in itself and in conjunction with the personal equation certain possibilities of financial, social, personal and sexual success, whether specially collected and selected as model pedagogic themes (of cent per cent merit) for the use of preparatory and junior grade students or contributed in printed form, following the precedent of Philip Beaufoy or Doctor Dick or Heblon's Studies in Blue, to a publication of certified circulation and†
Chpt 17 *

Definition:

postpone doing what one should be doing