Six Flagging 

When someone pretends to have knowledge about something they don't

Guy 1: Did you know that Six Flags theme park is called Six Flags because once an amusement park has reached a certain level of quality so they get Six Flags the highest rank?
Guy 2: Stop Six Flagging!
Six Flags Six Flags Flag Six Flag Flagging Theme Park Park Theme

Six Flagging by StopSixFlaggingUncleD.Jones! January 23, 2012

Sixflagging

The act of previously going to six flags.

"Ah yeah man, we went sixflagging last night."

Sixflagging by Cheshire_ March 17, 2010