Green’s Dictionary of Slang

1. (US) to brag, to exaggerate, to lie; thus bulldogging n.

1922		Wkly Jrnl Miner (Prescott, AZ) 5 July 3/4: The bulldogging was the feature some folks paid their dollar to see.
1928		R. Carr Rampant Age 18: Their [...] courtship had inspired him to bulldog himself into a position as an assembler in the Thompson Farm Machinery Company.
1956		‘Toney Betts’ Across the Board 240: Touts were allowed to advertise winners they did not have. This was called ‘blasting,’ ‘dynamiting,’ or ‘bulldogging’.

2. to destroy, to wear down; thus bulldogging n.

1931		O. Strange Law O’ The Lariat 48: Neatest bit o’ bulldoggin’ I ever seen.
1961		M. Terry Old Liberty (1962) 218: I worked hard [...] so that evenings I would bulldog the jeep back to the quarters so beat and worn down I would drop into my bunk.
1969		‘Iceberg Slim’ Pimp 220: Time and street had bulldogged the once cute ‘Peke’ face of the runt.

3. (also bulldag) to harass, whether verbally or physically; thus bulldogging n.

1965		B. Jackson Get Your Ass in the Water (1974) 125: I’m gonna sleigh-ride you and bulldag you too, / I’m gonna put you in the buck and airtight you just for luck.
1992		Bentley & Corbett Prison Sl. 91: Bulldoggin’ [...] a verbal harassment as well as a physical and or verbal intimidation.
2001		(con. 1975–6) E. Little Steel Toes 89: All this bulldogging, loud-talkin’, and general woofing has got my adrenaline all the way up.
2018		M. Mesko Confessions of a Caddie 60: TC is a real hard-tapper [...] He’ll never go hungry, because he can and will bulldog another caddie off the first tee if he needs a loop.

4. (N.Z.) to catch wild deer by dropping on them from helicopters.

2003

McGill Reed Dict. of N.Z. Sl. 37: bulldogging Catching wild deer by dropping on them from helicopters.