butt-brush factor

a.k.a. le facteur bousculade

A theory set forth by retail anthropologist Paco Underhill that women shoppers are far less likely to make a purchase if they are "brushed" from behind --by a person, a display table, or a piece of merchandise-- while examining retail goods. Underhill's finding, backed up by extensive video research, carries a corollary: Retailers should avoid jamming narrow aisles full of merchandise.

See also : cyber Monday  
NetLingo Classification: Online Jargon