n. Informal
Something, especially a game fish, that is large for its kind.

[Origin unknown.]


(Fishing) slang US an exceptionally large fish


(ˈlʌŋ kər)

something unusually large for its kind, esp. a large game fish.
[1910–15; lunk- (see lunkhead) + -er1]
References in periodicals archive ?
5-inch Lunker City Freaky Fish on an exposed 4/0 Trokar Flippin' Hook, otherwise weightless, on a 40-pound Seaguar fluorocarbon leader.
Burnette also earned the Lunker Award thanks to his 5.
That being said, he wouldn't reveal where he caught his lunker of a largemouth.
Then, you might have come to view the lunker Kokanee salmon and brown trout that migrate up the Deschutes River from the Wickiup Reservoir in September, or the bald eagles and osprey that are enticed by the spawning fish.
Q: OK, what is the tougher challenge, catching a lunker largemouth or arrowing a Pope and Young buck?
If you are lucky, you might find a lunker as Adam Johnson did in Alberta's match.
Glen Appleby from Peterlee landed a lunker of 20lb 4oz on a drifted buzzer and part of a 15-fish catch.
One last word on this subject: Sometimes you'll be on a bed where an old lunker hangs out.
I use them just as often for walleyes, which love their profile and action, especially if independent shad-bodied baits like the Lunker City Shaker or the YUM G-Shad are fished flat on a jighead instead of rigged up and down in natural fashion.
When I first visited Shadwell in the summer of 2002, he was emailing his Monday morning messages to the White House with an alluring offer: free lodging at Point of View Resort and a guided fishing trip for lunker walleyes.
Then the Jenks job--the big job, kind of like that lunker bass that a fisherman waits for all his life--eventually came along.