look up any word, like the eiffel tower:
 
3.
To perform , show off.

Look at dude over there grand standing tryna impress allison. pshhhh
by Justin Kane October 14, 2008
 
1.
"Showing off" or going out of one's way to appear spectacular. See showboating.
"After jumping the grand canyon on a unicycle, Harry was grandstanding by cycling backwards with his eyes closed with his underpants on fire."
by BigPimpDaddy May 07, 2004
 
2.
Showing off.
I don't think Phil realizes he's grandstanding in his speedo. Chicks dig his little tight ass.
by y20degrees May 07, 2004
 
4.
To receive fellatio while defecating in the upper tank of a toilet instead of the bowl.
"John keeps talking about how he got a lumpkin AND upper decked somebody the other night."

"Nah, he was just grandstanding - "
by HCGATOR07 December 03, 2009
 
5.
Brilliant persons of an upstanding community. Usually with huge bottoms.
Council chairpersons
by daniel ives May 07, 2004