Plantarse

Plantarse
 

Lyrics from Me colé en una fiesta (a Mecano song):

Ahí me colé y en tu fiesta me planté
Coca-Cola para todos y algo de comer
Mucha niña mona pero ninguna sola
Luces de colores, lo pasaré bien

Does “me planté” above simply mean:
“I stayed there” or could it mean “I sat down”?

Many thanks.

"I stayed there", resolved to stay no matter what. :)

What Angélica said is right. You might think of "plantarse" as "refusing to budge."

Colarse en una fiesta = To crash a party (come to the party without being invited)

Thanks so much.