The Collaborative International Dictionary of English v.0.48:

Supercharge \Su`per*charge"\, v. t. [imp. & p. p.
   Supercharged; p. pr. & vb. n. Supercharging.] [Pref.
   super- + charge. Cf. Surcharge.] (Her.)
   To charge (a bearing) upon another bearing; as, to
   supercharge a rose upon a fess.
   [1913 Webster]

WordNet (r) 3.0 (2006):

supercharged
    adj 1: (of e.g. an engine) having the power increased by fitting
           with a supercharger
    2: fraught with great emotion; "an atmosphere charged with
       excitement"; "an emotionally charged speech" [syn: charged,
       supercharged]

Moby Thesaurus II by Grady Ward, 1.0:

51 Moby Thesaurus words for "supercharged":
   bloated, burdened, bursting, charged, choked, congested, crammed,
   crowded, distended, drenched, filled to overflowing, fraught,
   freighted, full-charged, full-fraught, glutted, gorged,
   heavy-laden, hyperemic, in spate, jam-packed, jammed, laden,
   loaded, overblown, overburdened, overcharged, overfed, overflowing,
   overfraught, overfreighted, overfull, overladen, overloaded,
   overstocked, overstuffed, oversupplied, overweighted, packed,
   plethoric, ready to burst, running over, satiated, saturated,
   soaked, stuffed, stuffed up, supersaturated, surcharged, surfeited,
   swollen