A woman that exhibits all the outward characteristics of a lesbian, such as short hair, curt speech and masculine clothing, but is actually heterosexual.
Hey dude, see that carpet muncher over there? She just brushed me off.
No man, that's no carpet muncher, she's a dyke-alike. Looks like a dyke on the outside, hetero on the inside.
1. A heterosexual woman who prefers the company of lesbians. So much, that people start to assume she herself is a lesbian.
2. A straight woman that appears to have several of the same characteristics as a lesbian (i.e. mullet, flannel shirts, unshaven legs etc)
3. The Female counterpart of a Fag Stag
Lesbian 1: That new girl with Kate and Alli is hot, I am gonna get her.
Lesbian 2. Don't even try, she is just total breeder, just another Dyke-Alike