I am so clever that sometimes I don't understand a single word of what I am saying.

The line is a self-mocking paradox: the speaker boasts of extraordinary cleverness while admitting that his own brilliance can become empty performance, producing language that even he cannot parse. It satirizes the Victorian cult of wit and the temptation to equate verbal dexterity with genuine understanding. Read as Wildean comedy, it also punctures intellectual vanity—suggesting that “cleverness” can slide into obscurantism, jargon, or mere rhetorical flourish. The humor depends on the reversal: the supposed proof of genius (being “so clever”) becomes evidence of nonsense, implying that true intelligence should clarify rather than mystify.