Particularly devoted to, or famous for.

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1844.  He did not know how to cure the ague and fever, but he was great on fits.—Mr. Schenck of Ohio in the House of Repr., Jan. 8: Cong. Globe, p. 117.

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1849.  I ’m great on shells now, and pyroligneous acid.—Knick. Mag., xxxiii. 244 (March).

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1856.  He’s awful on ’possums; oh, I tell ye now, he’s great. Catch more ’possums than any nigger on the place.—Yale Lit. Mag., xxi. 147 (Feb.).

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1862.  

        I ’m gret on dreams, an’ often when I wake,
I ’ve lived so much it makes my mem’ry ache.
Lowell, ‘Biglow Papers,’ 2nd Series, No. 6.    

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