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1.
Predominately gay district of San Fransisco
You can get really great haircuts in the Castro
by yargh April 07, 2006
33 11
 
2.
While your having sex, you slip a cigar into your partner's ass, and then when you are all finished with your session, you light the cigar up and smoke it.

You give someone the Castro.
You can also get Castroed.

see also the Chong
Guy 1: While I was fucking my girl last night, I noticed a cigar on the night stand so I gave her the Castro.

Guy 2: you gave her the ole Castro? That's fucking tight!
by Crunchyness June 25, 2009
17 9