1.) pay as you go cell phone, because you are unable to use your regular cell for fear of being caught doing dirt by a spouse, girlfriend/boyfriend, or other restricting figure.
2.) having sex with someone and no intentions on keeping them around, see also jump off
You better have that girl hit you up on the grab & go before your wife checks those phone records.
Feeling kinda tipsy tonight, ready to get it in with a grab & go and be done wit it.