Green’s Dictionary of Slang

loads of n.

many, a great quantity, esp. of a desirable commodity.

[UK]Shakespeare Troilus and Cressida V i: The rotten diseases of the south, the guts-griping [...] loads o’ gravel i’ the back, lethargies.
[UK]‘Peter Pindar’ ‘Lyric Odes’ Works (1794) I 55: My Cousin had rump steaks to eat! [...] loads of dainty meat!
[US]J.K. Paulding John Bull in America 290: Their supper consisted of loads of meat, ham, venison, game of various kinds, in quantities sufficient to feast an army.
[UK]G.J. Whyte-Melville Kate Coventry (1865) 6: I’ve got bright eyes [...] and loads of soft brown hair.
[UK]T. Hughes Tom Brown at Oxford (1880) 52: They might get clever beggars for servitors, and farm them, and so make loads of tin.
[US]H.L. Williams Black-Eyed Beauty 42: Matty had a new dress, ‘loads’ of jewelry.
[US]A.H. Lewis ‘The Garrote’ in Sandburrs 132: There’s dead loads of t’ings about d’ Bend what’s so tough it ’ud make youse sore on yourself to get onto ’em.
[US]‘R. Scully’ Scarlet Pansy 283: Goody, goody, what loads and loads of nice reckless people I’ll meet.
[UK]D. Bolster Roll On My Twelve 10: A brilliant Skipper and a damn fine crew, loads of Jerries just asking for it.
[UK]C. Harris Death of a Barrow Boy 145: Taxi-loads of ’em. Fleets.
[US]S. Bellow Henderson The Rain King 217: I wish you loads of luck.
[UK]K. Williams Diaries 5 Oct. 199: Loads of stories about him making other people pipe down — ‘I told him’ etc.
[Ire]R. Doyle Van (1998) 499: Best before April ’92. You’ve loads o’ time, wha’.
[Ire]R. Doyle Woman Who Walked Into Doors 61: She put a mug of tea in front of me. – Loads of sugar in it.
[UK]Guardian G2 24 June 17: The Glastonbury Festival was going to be loads of fun.
[UK]Guardian Guide 1–6 Jan. 44: Paul [...] makes Channel 4’s day by doing loads of lines during his interview.

In phrases

give it loads (v.)

to talk aggressively; to make a fuss.

[UK]I. Welsh Filth 106: I’ve no intention of listening to some jungle-bunny giving it loads with their chip-on-the-shoulder shite.
[UK](con. 1980s) I. Welsh Skagboys 13: That nippy wee cockney cunt, Nicksy; he’s on the baw, giein it loads, mouthin off.