The phrase "large waistline" refers to having a bigger measurement around the middle part of your body. It suggests that a person carries excess weight or has some extra fat around their waist area. Full definition
Meanwhile, black women with large waistlines had more fat around their hearts than white women with similar amounts of belly bulge. (health.com)
A 2006 study in the International Journal of Obesity found that runners who ran the same distance or slightly more each week had LARGER waistlines at the end of the 9 year study. (turbulencetraining.com)
Additionally, the study identified another danger specific to black women with large waistlines: Their cardiovascular fat tended to be even closer to their hearts than the type accumulated by white women with high BMIs. (health.com)