When someone is invited to go on a date but they are too scared to go alone so they invite their friend to make sure the person they are going to meet is not a rappist, peadofile, murderer ect...
Kerrie: "Im going on a date with James on Saturday but im scared to go alone incase he rapes me, will you come with me?"
Hannah: "Yeaa sure why not, I will stand there looking like a tagger"
the extended period of numbness on the tip of your index finger (usually between 1 and 3 days) after you've been spray-painting for an extended period of time.
That shark I sprayed on the old bridge last night looks sweet, but it gave me a sick case of tagger's finger.