Binro the Heretic - 2008-11-01 Actually, he stuck it up his nose, behind his soft palette.
Which is still kind of gross and cool, I suppose.
Comrade Admiral - 2008-11-01 Yeah, it's pretty much impossible to swallow your own tongue, what with the tongue root and epiglottis being positioned as they are.
Blocking off the pharyngeal cavity is definitely possible though, as we see here. This guy can probably make some fucked up consonant sounds that are generally considered to be impossible by phoneticians.
fluffy - 2008-11-01 He should submit that for Microsoft's "I'm a PC" campaign.
"I'm a PC, and I can swallow my own tongue. MMMMMMMNNNNNNNNNN"