The term 'ruck' is a noun that refers to a disorderly crowd or a disorganized mass of people. The crossword solutions for this term include 'SLEW' (4 letters), which means a large number or quantity; 'FOLD' (4 letters), which means to bend or double over; 'WRINKLE' (7 letters), which means to form small folds or creases on a surface; 'CREASE' (6 letters), which means to make a line or FOLD in something; 'FURROW' (6 letters), which means a long, narrow trench made in the ground; 'SCRUM' (5 letters), which is a rugby formation; 'zug' (3 letters), which is a Swiss dialect word meaning to pull; 'FLIP' (4 letters), which means to throw or toss with a quick motion; 'JERK' (4 letters), which means to move with a sudden, sharp motion; 'YANK' (4 letters), which means to pull or tug suddenly; 'yolt' (4 letters), which is a Scottish dialect word meaning to JERK; 'HITCH' (5 letters), which means to move with a jerking motion; and 'LURCH' (5 letters), which means to move suddenly and unsteadily, as if about to fall. Finally, 'twitsch' (7 letters) is an obsolete English dialect word meaning to twitch or JERK.