ruck, herd -- (a crowd especially of ordinary or undistinguished persons or things; "his brilliance raised him above the ruck"; "the children resembled a fairy herd")
pucker, ruck -- (an irregular fold in an otherwise even surface (as in cloth))
Overview of verb ruck
The verb ruck has 1 sense
pucker, ruck, ruck up -- (become wrinkled or drawn together; "her lips puckered")