Answer:
It can greatly increase the chances, especially binge drinking.
Alcohol is known to reduce testosterone levels, and this can be a primary cause of gynecamastia - man boobs. Combine this with the common high intake of calories (from drinking + snacks) on a big night out, you may find yourself putting more fat on around the waist and pectorals.
Short answer, yes it can, so cut back if you feel you drink too much!