An excessive amount of bros.

A casual invitation / threat used by an individual that is not afraid of fucking someone up.

The overwhelming sensation one gets when surrounded by too many bros (young men generally characterized by open shirts, spiked hair, mixed drinks, and extreme self-confidence).

When a party features Dave Matthews Band and too many popped collared, horizontally-striped polos for its own good.

Chronic use of the word "bro" in a situation or setting. Many times resulting in the annoying of other individuals said situation or setting. Can also be define as the over use of the word bro in any general sense.

When there is a abundance of bros in a particular establishment at a single particular date and time

Broverload - too many dicks, not enough chicks.

Verb

1. to put too many guys on or in (something):

2. to cause a bar, nightclub or party to be unable to function properly because there are too many dicks in the mix:

3. to try to put more penises into a social gathering than said social gathering can comfortably accommodate:

Noun

1. an excessive amount of males present: that party in West Hollywood suffered (or benefitted, depending on your persuasion) from massive broverload.