Lesbarometer 

Like a "gaydar", but "lesbarometer" refers to someone's ability to detect if someone is lesbian or not.

I didn't realise that Chelsea is gay! My lesbarometer never works.

Lesbarometer by zoobiscuitz October 3, 2010

lesbometer 

lesbian meter, (similar to gaydar)

pronounced like 'odometer' or 'altimeter', this word is that certain "spidey sense" that lesbians are present

"When I saw those two women talking my lesbometer went nuts."

lesbometer by bmw March 1, 2005

lesbometer 

when you sense the coming of a Cunt Nazi, your lesbometer goes up. When a rockrr girl tells you she likes women and your lesbometer shows no activity, she's lying. stick your tongue down her throat.

The lesbometer just put Avril Lavine out of business.

lesbometer by anonymous March 3, 2005