People who experienced this often compares it to being raped or molested.
Can also be used when talking about a hot ginger (see Lindsay Lohan) you would like to have sex with.
2. Officer, officer! I got gingered by that homeless guy, arrest him!
3.Oh damn! I'd wanna ginger Lindsay Lohan!
"Nah, my girlfriend gingered me last night and I forgot to take a shower."
Same meaning as to "do a ginger"