The Collaborative International Dictionary of English v.0.48:
Knobbler \Knob"bler\, n. (Zool.) The hart in its second year; a young deer. [Written also knobber.] --Halliwell. [1913 Webster] He has hallooed the hounds upon a velvet-headed knobbler. --Sir W. Scott. [1913 Webster]The Collaborative International Dictionary of English v.0.48:
Knobber \Knob"ber\, n. (Zool.) See Knobbler. [1913 Webster]